Finding the Fourth Proportional to 5,431,580.60, 8,147,370.90 and 2,912,156.60
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Solution
The fourth proportional to 5,431,580.60, 8,147,370.90 and 2,912,156.60 is: 4,368,234.90
Step by Step Solution
- Step 1: Write the proportion equation
5,431,580.60 : 8,147,370.90 = 2,912,156.60 : x - Step 2: Convert to fraction form
5,431,580.60/8,147,370.90 = 2,912,156.60/x - Step 3: Cross multiply
5,431,580.60x = 8,147,370.90 × 2,912,156.60 - Step 4: Simplify right side
5,431,580.60x = 23,726,419,939,082.94 - Step 5: Solve for x
x = 23,726,419,939,082.94/5,431,580.60 - Step 6: Final answer
x = 4,368,234.90
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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.