Home / 20,466,660.39-28,256,737.86-13,028,519.27

Finding the Fourth Proportional to 20,466,660.39, 28,256,737.86 and 13,028,519.27

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Solution

The fourth proportional to 20,466,660.39, 28,256,737.86 and 13,028,519.27 is: 17,987,470.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,466,660.39 : 28,256,737.86 = 13,028,519.27 : x
  2. Step 2: Convert to fraction form
    20,466,660.39/28,256,737.86 = 13,028,519.27/x
  3. Step 3: Cross multiply
    20,466,660.39x = 28,256,737.86 × 13,028,519.27
  4. Step 4: Simplify right side
    20,466,660.39x = 368,143,453,765,592.56
  5. Step 5: Solve for x
    x = 368,143,453,765,592.56/20,466,660.39
  6. Step 6: Final answer
    x = 17,987,470.69

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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.