Finding the Fourth Proportional to 274,192,962.96, 378,386,288.88 and 156,720,815.46
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Solution
The fourth proportional to 274,192,962.96, 378,386,288.88 and 156,720,815.46 is: 216,274,725.33
Step by Step Solution
- Step 1: Write the proportion equation
274,192,962.96 : 378,386,288.88 = 156,720,815.46 : x - Step 2: Convert to fraction form
274,192,962.96/378,386,288.88 = 156,720,815.46/x - Step 3: Cross multiply
274,192,962.96x = 378,386,288.88 × 156,720,815.46 - Step 4: Simplify right side
274,192,962.96x = 59,301,007,752,156,736 - Step 5: Solve for x
x = 59,301,007,752,156,736/274,192,962.96 - Step 6: Final answer
x = 216,274,725.33
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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.