The question provided seems to be in Indonesian and deals with fractions involving variables. It states:

1. If:

$\frac{a}{b} + \frac{c}{d} = 16$ and $\frac{a}{c} + \frac{b}{d} = 36$

with the condition that $b$, $c$, and $d \neq 0$, then you are asked to find the value of $\frac{c}{b}$.

To solve this, we can approach it algebraically by first isolating variables and substituting values between the two equations.

Would you like to proceed with solving the system of equations step by step? Let me know if you'd like a detailed explanation.