Finding the Fourth Proportional to 396,324,634.12, 546,895,993.98 and 229,071,730
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Solution
The fourth proportional to 396,324,634.12, 546,895,993.98 and 229,071,730 is: 316,100,491.08
Step by Step Solution
- Step 1: Write the proportion equation
396,324,634.12 : 546,895,993.98 = 229,071,730 : x - Step 2: Convert to fraction form
396,324,634.12/546,895,993.98 = 229,071,730/x - Step 3: Cross multiply
396,324,634.12x = 546,895,993.98 × 229,071,730 - Step 4: Simplify right side
396,324,634.12x = 125,278,411,471,068,192 - Step 5: Solve for x
x = 125,278,411,471,068,192/396,324,634.12 - Step 6: Final answer
x = 316,100,491.08
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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.