Finding the Fourth Proportional to 3,121,633,691.62, 4,680,580,604.99 and 993,560,171.44
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Solution
The fourth proportional to 3,121,633,691.62, 4,680,580,604.99 and 993,560,171.44 is: 1,489,745,091.11
Step by Step Solution
- Step 1: Write the proportion equation
3,121,633,691.62 : 4,680,580,604.99 = 993,560,171.44 : x - Step 2: Convert to fraction form
3,121,633,691.62/4,680,580,604.99 = 993,560,171.44/x - Step 3: Cross multiply
3,121,633,691.62x = 4,680,580,604.99 × 993,560,171.44 - Step 4: Simplify right side
3,121,633,691.62x = 4,650,438,468,331,379,712 - Step 5: Solve for x
x = 4,650,438,468,331,379,712/3,121,633,691.62 - Step 6: Final answer
x = 1,489,745,091.11
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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.