Final answer:
To calculate the future value of an annuity, use the formula FV = P * ((1 + r)^n - 1) / r. For Homer Simpson's investment of $100,000 10 years ago and additional investments of $2,500 per year for 15 years at an 11.5% annual interest rate, the future value is $833,103.32.
Step-by-step explanation:
To calculate the future value of an annuity, we can use the formula:
FV = P imes ((1 + r)^n - 1) / r
Where:
- FV is the future value
- P is the periodic payment
- r is the interest rate per period
- n is the number of periods
In this case, Homer Simpson invested $100,000 10 years ago and is now investing an additional $2,500 at the beginning of each year for 15 years. The interest rate is 11.5% per year.
Using the formula, we can calculate the future value:
FV = 100,000
imes ((1 + 0.115)^10) + (2,500
imes ((1 + 0.115)^15 - 1) / 0.115) = $833,103.32