Home / 15,204,185.82-20,981,780.19-8,328,912.30

Finding the Fourth Proportional to 15,204,185.82, 20,981,780.19 and 8,328,912.30

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Solution

The fourth proportional to 15,204,185.82, 20,981,780.19 and 8,328,912.30 is: 11,493,901.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,204,185.82 : 20,981,780.19 = 8,328,912.30 : x
  2. Step 2: Convert to fraction form
    15,204,185.82/20,981,780.19 = 8,328,912.30/x
  3. Step 3: Cross multiply
    15,204,185.82x = 20,981,780.19 × 8,328,912.30
  4. Step 4: Simplify right side
    15,204,185.82x = 174,755,407,100,387.34
  5. Step 5: Solve for x
    x = 174,755,407,100,387.34/15,204,185.82
  6. Step 6: Final answer
    x = 11,493,901.03

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Double scale
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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.