Home / 20,425,499.28-28,187,246.16-11,258,178.48

Finding the Fourth Proportional to 20,425,499.28, 28,187,246.16 and 11,258,178.48

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Solution

The fourth proportional to 20,425,499.28, 28,187,246.16 and 11,258,178.48 is: 15,536,317.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,425,499.28 : 28,187,246.16 = 11,258,178.48 : x
  2. Step 2: Convert to fraction form
    20,425,499.28/28,187,246.16 = 11,258,178.48/x
  3. Step 3: Cross multiply
    20,425,499.28x = 28,187,246.16 × 11,258,178.48
  4. Step 4: Simplify right side
    20,425,499.28x = 317,337,048,128,974.62
  5. Step 5: Solve for x
    x = 317,337,048,128,974.62/20,425,499.28
  6. Step 6: Final answer
    x = 15,536,317.80

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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.