Finding the Fourth Proportional to 278,719,385.84, 418,052,063.84 and 84,632,507.13
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Solution
The fourth proportional to 278,719,385.84, 418,052,063.84 and 84,632,507.13 is: 126,940,557.68
Step by Step Solution
- Step 1: Write the proportion equation
278,719,385.84 : 418,052,063.84 = 84,632,507.13 : x - Step 2: Convert to fraction form
278,719,385.84/418,052,063.84 = 84,632,507.13/x - Step 3: Cross multiply
278,719,385.84x = 418,052,063.84 × 84,632,507.13 - Step 4: Simplify right side
278,719,385.84x = 35,380,794,273,226,848 - Step 5: Solve for x
x = 35,380,794,273,226,848/278,719,385.84 - Step 6: Final answer
x = 126,940,557.68
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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.