Finding the Fourth Proportional to 396,324,636.12, 546,895,996.74 and 229,071,732
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Solution
The fourth proportional to 396,324,636.12, 546,895,996.74 and 229,071,732 is: 316,100,493.84
Step by Step Solution
- Step 1: Write the proportion equation
396,324,636.12 : 546,895,996.74 = 229,071,732 : x - Step 2: Convert to fraction form
396,324,636.12/546,895,996.74 = 229,071,732/x - Step 3: Cross multiply
396,324,636.12x = 546,895,996.74 × 229,071,732 - Step 4: Simplify right side
396,324,636.12x = 125,278,413,197,098,160 - Step 5: Solve for x
x = 125,278,413,197,098,160/396,324,636.12 - Step 6: Final answer
x = 316,100,493.84
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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.