Finding the Fourth Proportional to 326,920,421.97, 490,382,439.03 and 81,277,057.08
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Solution
The fourth proportional to 326,920,421.97, 490,382,439.03 and 81,277,057.08 is: 121,916,034.64
Step by Step Solution
- Step 1: Write the proportion equation
326,920,421.97 : 490,382,439.03 = 81,277,057.08 : x - Step 2: Convert to fraction form
326,920,421.97/490,382,439.03 = 81,277,057.08/x - Step 3: Cross multiply
326,920,421.97x = 490,382,439.03 × 81,277,057.08 - Step 4: Simplify right side
326,920,421.97x = 39,856,841,488,070,928 - Step 5: Solve for x
x = 39,856,841,488,070,928/326,920,421.97 - Step 6: Final answer
x = 121,916,034.64
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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.