How much money should you invest now (to the nearest dollar) in an account that earns interest at a rate of \( 7.3 \% \) per year, compounded continuously, in order to have \( \$ 451,000 \) in 9 years? You should invest \( \$ \) Submit answer
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To find out how much money you should invest now, we can use the formula for continuous compounding: \[ A = Pe^{rt} \] where: - \( A \) is the amount of money you want in the future (\$451,000), - \( P \) is the principal amount (the initial amount of money you need to find), - \( r \) is the annual interest rate (7.3% or 0.073), and - \( t \) is the time in years (9 years). Rearranging the formula to solve for \( P \): \[ P = \frac{A}{e^{rt}} \] Plugging in the numbers: \[ P = \frac{451,000}{e^{0.073 \times 9}} \] After calculating \( e^{0.657} \) (approximately \( 1.928 \)): \[ P \approx \frac{451,000}{1.928} \approx 233,126.59 \] Rounding to the nearest dollar, you should invest approximately \( \$233,127 \). So, to achieve your \$451,000 goal in 9 years, get ready to invest \( \$233,127 \) now!