Finding the Fourth Proportional to 3,121,633,697.30, 4,680,580,613.49 and 993,560,177.12
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Solution
The fourth proportional to 3,121,633,697.30, 4,680,580,613.49 and 993,560,177.12 is: 1,489,745,099.62
Step by Step Solution
- Step 1: Write the proportion equation
3,121,633,697.30 : 4,680,580,613.49 = 993,560,177.12 : x - Step 2: Convert to fraction form
3,121,633,697.30/4,680,580,613.49 = 993,560,177.12/x - Step 3: Cross multiply
3,121,633,697.30x = 4,680,580,613.49 × 993,560,177.12 - Step 4: Simplify right side
3,121,633,697.30x = 4,650,438,503,340,160,000 - Step 5: Solve for x
x = 4,650,438,503,340,160,000/3,121,633,697.30 - Step 6: Final answer
x = 1,489,745,099.62
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.