Finding the Fourth Proportional to 718,811,456.49, 1,078,336,382.17 and 252,351,818.73
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Solution
The fourth proportional to 718,811,456.49, 1,078,336,382.17 and 252,351,818.73 is: 378,569,574.52
Step by Step Solution
- Step 1: Write the proportion equation
718,811,456.49 : 1,078,336,382.17 = 252,351,818.73 : x - Step 2: Convert to fraction form
718,811,456.49/1,078,336,382.17 = 252,351,818.73/x - Step 3: Cross multiply
718,811,456.49x = 1,078,336,382.17 × 252,351,818.73 - Step 4: Simplify right side
718,811,456.49x = 272,120,147,243,327,840 - Step 5: Solve for x
x = 272,120,147,243,327,840/718,811,456.49 - Step 6: Final answer
x = 378,569,574.52
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.