Finding the Fourth Proportional to 5,431,549.80, 8,147,324.70 and 2,912,125.80
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Solution
The fourth proportional to 5,431,549.80, 8,147,324.70 and 2,912,125.80 is: 4,368,188.70
Step by Step Solution
- Step 1: Write the proportion equation
5,431,549.80 : 8,147,324.70 = 2,912,125.80 : x - Step 2: Convert to fraction form
5,431,549.80/8,147,324.70 = 2,912,125.80/x - Step 3: Cross multiply
5,431,549.80x = 8,147,324.70 × 2,912,125.80 - Step 4: Simplify right side
5,431,549.80x = 23,726,034,459,847.26 - Step 5: Solve for x
x = 23,726,034,459,847.26/5,431,549.80 - Step 6: Final answer
x = 4,368,188.70
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1.5x scale
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.