Home / 20,417,731.20-28,177,724.16-11,250,371.52

Finding the Fourth Proportional to 20,417,731.20, 28,177,724.16 and 11,250,371.52

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Solution

The fourth proportional to 20,417,731.20, 28,177,724.16 and 11,250,371.52 is: 15,526,204.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,417,731.20 : 28,177,724.16 = 11,250,371.52 : x
  2. Step 2: Convert to fraction form
    20,417,731.20/28,177,724.16 = 11,250,371.52/x
  3. Step 3: Cross multiply
    20,417,731.20x = 28,177,724.16 × 11,250,371.52
  4. Step 4: Simplify right side
    20,417,731.20x = 317,009,865,388,079.94
  5. Step 5: Solve for x
    x = 317,009,865,388,079.94/20,417,731.20
  6. Step 6: Final answer
    x = 15,526,204.27

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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.