Finding the Fourth Proportional to 80,458,321.30, 120,687,481.95 and 29,342,007.70
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Solution
The fourth proportional to 80,458,321.30, 120,687,481.95 and 29,342,007.70 is: 44,013,011.55
Step by Step Solution
- Step 1: Write the proportion equation
80,458,321.30 : 120,687,481.95 = 29,342,007.70 : x - Step 2: Convert to fraction form
80,458,321.30/120,687,481.95 = 29,342,007.70/x - Step 3: Cross multiply
80,458,321.30x = 120,687,481.95 × 29,342,007.70 - Step 4: Simplify right side
80,458,321.30x = 3,541,213,024,670,511 - Step 5: Solve for x
x = 3,541,213,024,670,511/80,458,321.30 - Step 6: Final answer
x = 44,013,011.55
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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.