Finding the Fourth Proportional to 2,982,845.92, 4,118,757.84 and 2,431,650.40
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Solution
The fourth proportional to 2,982,845.92, 4,118,757.84 and 2,431,650.40 is: 3,357,658.90
Step by Step Solution
- Step 1: Write the proportion equation
2,982,845.92 : 4,118,757.84 = 2,431,650.40 : x - Step 2: Convert to fraction form
2,982,845.92/4,118,757.84 = 2,431,650.40/x - Step 3: Cross multiply
2,982,845.92x = 4,118,757.84 × 2,431,650.40 - Step 4: Simplify right side
2,982,845.92x = 10,015,379,149,139.13 - Step 5: Solve for x
x = 10,015,379,149,139.13/2,982,845.92 - Step 6: Final answer
x = 3,357,658.90
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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.