Math Problem Statement
The geometric mean is often used in business and economics for finding average rates of change, average rates of growth, or average ratios. Given n values (all of which are positive), the geometric mean is the nth root of their product. The average growth factor for money compounded at annual interest rates of 8.5%, 4.1%, and 2.6% can be found by computing the geometric mean of 1.085, 1.041, and 1.026. Find that average growth factor, or geometric mean. What single percentage growth rateLOADING... would be the same as having three successive growth rates of 8.5%, 4.1%, and 2.6%? Is that result the same as the mean of 8.5%, 4.1%, and 2.6%? Question content area bottom Part 1 The average growth factor, or geometric mean, is what? Round to 4 decimals.
Solution
The geometric mean of the given growth factors is calculated as:
Let's compute this value. Given growth factors growth_factors = [1.085, 1.041, 1.026]
Compute geometric mean
geometric_mean = (growth_factors[0] * growth_factors[1] * growth_factors[2]) ** (1/3)
Round to four decimal places
geometric_mean_rounded = round(geometric_mean, 4) geometric_mean_roundedThe average growth factor, or geometric mean, is 1.0504 (rounded to four decimal places).
Part 2: Equivalent Single Percentage Growth Rate
The equivalent single percentage growth rate is found by converting the geometric mean back to a percentage:
Let's compute this value. Compute the equivalent single percentage growth rate equivalent_growth_rate = (geometric_mean_rounded - 1) * 100 equivalent_growth_rateThe equivalent single percentage growth rate is 5.04%.
Part 3: Comparing with the Arithmetic Mean
Now, let's compare this result with the arithmetic mean of the given percentages:
Let's compute this value. Given growth percentages growth_percentages = [8.5, 4.1, 2.6]
Compute arithmetic mean
arithmetic_mean = sum(growth_percentages) / len(growth_percentages) arithmetic_meanThe arithmetic mean of the given percentages is 5.07% (rounded to two decimal places).
Conclusion
The geometric mean growth rate (5.04%) is slightly lower than the arithmetic mean (5.07%), which is expected because the geometric mean accounts for compounding effects and provides a more accurate measure for growth rates over time.
Would you like a more detailed explanation of any step?
Here are some related questions:
- How is the geometric mean different from the arithmetic mean in financial analysis?
- When should the geometric mean be used instead of the arithmetic mean?
- Can the geometric mean ever be greater than the arithmetic mean?
- How does the geometric mean help in calculating average investment returns?
- What happens if one of the values in the geometric mean calculation is zero?
Tip: The geometric mean is particularly useful in cases involving percentages, ratios, or rates of change, as it preserves the proportionality between values.
Ask a new question for Free
By Image
Drop file here or Click Here to upload
Math Problem Analysis
Mathematical Concepts
Geometric Mean
Average Growth Factor
Percentage Growth Rate
Formulas
Geometric Mean = (Product of Values)^(1/n)
Equivalent Growth Rate = (Geometric Mean - 1) * 100
Arithmetic Mean = (Sum of Percentages) / n
Theorems
Geometric Mean Theorem
Properties of Growth Rates
Suitable Grade Level
Grades 10-12
Related Recommendation
Calculate the Geometric Mean for Growth Rates of 13.5%, 8.9%, and 1.2%
Calculating the Geometric Mean for Growth Rates of 13.1%, 4.3%, and 2.1%
How to Calculate the Average Historical Growth Rate Using Geometric Mean
Calculate the Average Annual Gain of a Stock Using Geometric Mean
How to Simplify Geometric Mean Expression for Compound Rates