Finding the Fourth Proportional to 636,596,049.71, 878,502,589.09 and 354,332,414.18
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Solution
The fourth proportional to 636,596,049.71, 878,502,589.09 and 354,332,414.18 is: 488,978,754.10
Step by Step Solution
- Step 1: Write the proportion equation
636,596,049.71 : 878,502,589.09 = 354,332,414.18 : x - Step 2: Convert to fraction form
636,596,049.71/878,502,589.09 = 354,332,414.18/x - Step 3: Cross multiply
636,596,049.71x = 878,502,589.09 × 354,332,414.18 - Step 4: Simplify right side
636,596,049.71x = 311,281,943,252,558,144 - Step 5: Solve for x
x = 311,281,943,252,558,144/636,596,049.71 - Step 6: Final answer
x = 488,978,754.10
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.