Home / 20,417,136.40-28,177,633.68-15,251,530

Finding the Fourth Proportional to 20,417,136.40, 28,177,633.68 and 15,251,530

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Solution

The fourth proportional to 20,417,136.40, 28,177,633.68 and 15,251,530 is: 21,048,594.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,417,136.40 : 28,177,633.68 = 15,251,530 : x
  2. Step 2: Convert to fraction form
    20,417,136.40/28,177,633.68 = 15,251,530/x
  3. Step 3: Cross multiply
    20,417,136.40x = 28,177,633.68 × 15,251,530
  4. Step 4: Simplify right side
    20,417,136.40x = 429,752,025,399,530.38
  5. Step 5: Solve for x
    x = 429,752,025,399,530.38/20,417,136.40
  6. Step 6: Final answer
    x = 21,048,594.52

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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.