Home / 40,025,851.20-55,235,721.89-21,691,136.70

Finding the Fourth Proportional to 40,025,851.20, 55,235,721.89 and 21,691,136.70

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Solution

The fourth proportional to 40,025,851.20, 55,235,721.89 and 21,691,136.70 is: 29,933,794.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,025,851.20 : 55,235,721.89 = 21,691,136.70 : x
  2. Step 2: Convert to fraction form
    40,025,851.20/55,235,721.89 = 21,691,136.70/x
  3. Step 3: Cross multiply
    40,025,851.20x = 55,235,721.89 × 21,691,136.70
  4. Step 4: Simplify right side
    40,025,851.20x = 1,198,125,594,239,172.25
  5. Step 5: Solve for x
    x = 1,198,125,594,239,172.25/40,025,851.20
  6. Step 6: Final answer
    x = 29,933,794.24

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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.