Finding the Fourth Proportional to 4,000,141.92, 5,520,153.84 and 2,164,560.14
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Solution
The fourth proportional to 4,000,141.92, 5,520,153.84 and 2,164,560.14 is: 2,987,070.26
Step by Step Solution
- Step 1: Write the proportion equation
4,000,141.92 : 5,520,153.84 = 2,164,560.14 : x - Step 2: Convert to fraction form
4,000,141.92/5,520,153.84 = 2,164,560.14/x - Step 3: Cross multiply
4,000,141.92x = 5,520,153.84 × 2,164,560.14 - Step 4: Simplify right side
4,000,141.92x = 11,948,704,968,731.94 - Step 5: Solve for x
x = 11,948,704,968,731.94/4,000,141.92 - Step 6: Final answer
x = 2,987,070.26
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Double scale
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Similar ratio
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1.5x scale
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.