Finding the Fourth Proportional to 19,440,117.10, 29,160,175.65 and 15,660,981.10
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Solution
The fourth proportional to 19,440,117.10, 29,160,175.65 and 15,660,981.10 is: 23,491,471.65
Step by Step Solution
- Step 1: Write the proportion equation
19,440,117.10 : 29,160,175.65 = 15,660,981.10 : x - Step 2: Convert to fraction form
19,440,117.10/29,160,175.65 = 15,660,981.10/x - Step 3: Cross multiply
19,440,117.10x = 29,160,175.65 × 15,660,981.10 - Step 4: Simplify right side
19,440,117.10x = 456,676,959,727,330.19 - Step 5: Solve for x
x = 456,676,959,727,330.19/19,440,117.10 - Step 6: Final answer
x = 23,491,471.65
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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 (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.