Finding the Fourth Proportional to 19,440,154.60, 29,160,231.90 and 15,661,018.60
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Solution
The fourth proportional to 19,440,154.60, 29,160,231.90 and 15,661,018.60 is: 23,491,527.90
Step by Step Solution
- Step 1: Write the proportion equation
19,440,154.60 : 29,160,231.90 = 15,661,018.60 : x - Step 2: Convert to fraction form
19,440,154.60/29,160,231.90 = 15,661,018.60/x - Step 3: Cross multiply
19,440,154.60x = 29,160,231.90 × 15,661,018.60 - Step 4: Simplify right side
19,440,154.60x = 456,678,934,166,213.31 - Step 5: Solve for x
x = 456,678,934,166,213.31/19,440,154.60 - Step 6: Final answer
x = 23,491,527.90
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Similar ratio
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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.