Finding the Fourth Proportional to 5,647,872.10, 8,471,808.15 and 5,258,148.70
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Solution
The fourth proportional to 5,647,872.10, 8,471,808.15 and 5,258,148.70 is: 7,887,223.05
Step by Step Solution
- Step 1: Write the proportion equation
5,647,872.10 : 8,471,808.15 = 5,258,148.70 : x - Step 2: Convert to fraction form
5,647,872.10/8,471,808.15 = 5,258,148.70/x - Step 3: Cross multiply
5,647,872.10x = 8,471,808.15 × 5,258,148.70 - Step 4: Simplify right side
5,647,872.10x = 44,546,027,010,571.91 - Step 5: Solve for x
x = 44,546,027,010,571.91/5,647,872.10 - Step 6: Final answer
x = 7,887,223.05
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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.