Finding the Fourth Proportional to 457,596,081.12, 686,135,624.70 and 418,551,332.34
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Solution
The fourth proportional to 457,596,081.12, 686,135,624.70 and 418,551,332.34 is: 627,590,557.99
Step by Step Solution
- Step 1: Write the proportion equation
457,596,081.12 : 686,135,624.70 = 418,551,332.34 : x - Step 2: Convert to fraction form
457,596,081.12/686,135,624.70 = 418,551,332.34/x - Step 3: Cross multiply
457,596,081.12x = 686,135,624.70 × 418,551,332.34 - Step 4: Simplify right side
457,596,081.12x = 287,182,979,884,123,200 - Step 5: Solve for x
x = 287,182,979,884,123,200/457,596,081.12 - Step 6: Final answer
x = 627,590,557.99
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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.