Math Problem Statement
Rebecca inherited some land worth ₦50000 that has increased in value by an average of 5% per year for the last 5 years. If this rate of appreciation continues, about how much will the land be worth in another 5 years? using sequences and series
Solution
To solve this problem, we will apply the concept of geometric progression (GP), since the land’s value increases by a fixed percentage (5%) each year.
The formula for the -th term of a geometric sequence is:
where:
- is the value of the land after years,
- is the initial value of the land,
- is the rate of appreciation (expressed as a decimal), and
- is the number of years.
Step 1: Determine the known values
- Initial value () = ₦50,000
- Rate of appreciation () = 5% = 0.05
- Time period to forecast is 10 years (since 5 years have already passed, and we want the value after another 5 years).
Step 2: Calculate the value of the land after 10 years
We need to apply the formula for the value after 10 years:
Conclusion:
The value of the land in another 5 years (after 10 years in total) will be approximately ₦81,444.73.
Would you like to dive deeper into the derivation of this formula, or do you have any questions about this approach?
Related Questions:
- How do I calculate the future value of a sum of money using compound interest formulas?
- How does the number of years affect the growth of a value in a geometric progression?
- What would happen if the rate of appreciation were to change over time, rather than staying fixed at 5%?
- How can I calculate the present value of an investment given a future value and interest rate?
- What are some real-life applications of geometric progressions in finance?
Tip: In finance, geometric progressions are often used to model investment growth, like in stocks or real estate. Always check if the growth is compounded annually, as this simplifies using the formula directly.
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Math Problem Analysis
Mathematical Concepts
Geometric Progression
Exponential Growth
Sequences and Series
Formulas
A_n = A_1 * (1 + r)^(n-1)
Theorems
Geometric Progression Formula
Suitable Grade Level
Grades 10-12