Finding the Fourth Proportional to 390,861,729.72, 586,312,773.30 and 99,731,400.12
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Solution
The fourth proportional to 390,861,729.72, 586,312,773.30 and 99,731,400.12 is: 149,602,248.94
Step by Step Solution
- Step 1: Write the proportion equation
390,861,729.72 : 586,312,773.30 = 99,731,400.12 : x - Step 2: Convert to fraction form
390,861,729.72/586,312,773.30 = 99,731,400.12/x - Step 3: Cross multiply
390,861,729.72x = 586,312,773.30 × 99,731,400.12 - Step 4: Simplify right side
390,861,729.72x = 58,473,793,789,449,152 - Step 5: Solve for x
x = 58,473,793,789,449,152/390,861,729.72 - Step 6: Final answer
x = 149,602,248.94
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