Finding the Fourth Proportional to 399,256,609.47, 598,349,591.08 and 310,732,078.14
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Solution
The fourth proportional to 399,256,609.47, 598,349,591.08 and 310,732,078.14 is: 465,681,487.75
Step by Step Solution
- Step 1: Write the proportion equation
399,256,609.47 : 598,349,591.08 = 310,732,078.14 : x - Step 2: Convert to fraction form
399,256,609.47/598,349,591.08 = 310,732,078.14/x - Step 3: Cross multiply
399,256,609.47x = 598,349,591.08 × 310,732,078.14 - Step 4: Simplify right side
399,256,609.47x = 185,926,411,890,507,616 - Step 5: Solve for x
x = 185,926,411,890,507,616/399,256,609.47 - Step 6: Final answer
x = 465,681,487.75
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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.