Finding the Fourth Proportional to 8,691,404.70, 13,037,107.05 and 5,479,139.10
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Solution
The fourth proportional to 8,691,404.70, 13,037,107.05 and 5,479,139.10 is: 8,218,708.65
Step by Step Solution
- Step 1: Write the proportion equation
8,691,404.70 : 13,037,107.05 = 5,479,139.10 : x - Step 2: Convert to fraction form
8,691,404.70/13,037,107.05 = 5,479,139.10/x - Step 3: Cross multiply
8,691,404.70x = 13,037,107.05 × 5,479,139.10 - Step 4: Simplify right side
8,691,404.70x = 71,432,122,988,540.66 - Step 5: Solve for x
x = 71,432,122,988,540.66/8,691,404.70 - Step 6: Final answer
x = 8,218,708.65
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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.