Home / 19,928,131.20-29,899,195.20-8,572,060.80

Finding the Fourth Proportional to 19,928,131.20, 29,899,195.20 and 8,572,060.80

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Solution

The fourth proportional to 19,928,131.20, 29,899,195.20 and 8,572,060.80 is: 12,861,101.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,928,131.20 : 29,899,195.20 = 8,572,060.80 : x
  2. Step 2: Convert to fraction form
    19,928,131.20/29,899,195.20 = 8,572,060.80/x
  3. Step 3: Cross multiply
    19,928,131.20x = 29,899,195.20 × 8,572,060.80
  4. Step 4: Simplify right side
    19,928,131.20x = 256,297,719,125,468.19
  5. Step 5: Solve for x
    x = 256,297,719,125,468.19/19,928,131.20
  6. Step 6: Final answer
    x = 12,861,101.55

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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.