Finding the Fourth Proportional to 17,680,863.80, 26,521,295.70 and 15,555,099.80
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Solution
The fourth proportional to 17,680,863.80, 26,521,295.70 and 15,555,099.80 is: 23,332,649.70
Step by Step Solution
- Step 1: Write the proportion equation
17,680,863.80 : 26,521,295.70 = 15,555,099.80 : x - Step 2: Convert to fraction form
17,680,863.80/26,521,295.70 = 15,555,099.80/x - Step 3: Cross multiply
17,680,863.80x = 26,521,295.70 × 15,555,099.80 - Step 4: Simplify right side
17,680,863.80x = 412,541,401,438,810.88 - Step 5: Solve for x
x = 412,541,401,438,810.88/17,680,863.80 - Step 6: Final answer
x = 23,332,649.70
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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.