Finding the Fourth Proportional to 87,404,468.09, 120,618,147.74 and 48,246,234.62
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Solution
The fourth proportional to 87,404,468.09, 120,618,147.74 and 48,246,234.62 is: 66,579,793.71
Step by Step Solution
- Step 1: Write the proportion equation
87,404,468.09 : 120,618,147.74 = 48,246,234.62 : x - Step 2: Convert to fraction form
87,404,468.09/120,618,147.74 = 48,246,234.62/x - Step 3: Cross multiply
87,404,468.09x = 120,618,147.74 × 48,246,234.62 - Step 4: Simplify right side
87,404,468.09x = 5,819,371,454,449,541 - Step 5: Solve for x
x = 5,819,371,454,449,541/87,404,468.09 - Step 6: Final answer
x = 66,579,793.71
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.