Finding the Fourth Proportional to 84,278,774.72, 126,418,324.70 and 32,487,766.40
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Solution
The fourth proportional to 84,278,774.72, 126,418,324.70 and 32,487,766.40 is: 48,731,712.28
Step by Step Solution
- Step 1: Write the proportion equation
84,278,774.72 : 126,418,324.70 = 32,487,766.40 : x - Step 2: Convert to fraction form
84,278,774.72/126,418,324.70 = 32,487,766.40/x - Step 3: Cross multiply
84,278,774.72x = 126,418,324.70 × 32,487,766.40 - Step 4: Simplify right side
84,278,774.72x = 4,107,049,000,982,078 - Step 5: Solve for x
x = 4,107,049,000,982,078/84,278,774.72 - Step 6: Final answer
x = 48,731,712.28
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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.