Finding the Fourth Proportional to 285,331,397.04, 393,757,385.20 and 173,822,231.84
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Solution
The fourth proportional to 285,331,397.04, 393,757,385.20 and 173,822,231.84 is: 239,874,714.84
Step by Step Solution
- Step 1: Write the proportion equation
285,331,397.04 : 393,757,385.20 = 173,822,231.84 : x - Step 2: Convert to fraction form
285,331,397.04/393,757,385.20 = 173,822,231.84/x - Step 3: Cross multiply
285,331,397.04x = 393,757,385.20 × 173,822,231.84 - Step 4: Simplify right side
285,331,397.04x = 68,443,787,498,946,584 - Step 5: Solve for x
x = 68,443,787,498,946,584/285,331,397.04 - Step 6: Final answer
x = 239,874,714.84
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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.