Home / 18,760,291.20-28,119,090.24-7,970,857.92

Finding the Fourth Proportional to 18,760,291.20, 28,119,090.24 and 7,970,857.92

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Solution

The fourth proportional to 18,760,291.20, 28,119,090.24 and 7,970,857.92 is: 11,947,217.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,760,291.20 : 28,119,090.24 = 7,970,857.92 : x
  2. Step 2: Convert to fraction form
    18,760,291.20/28,119,090.24 = 7,970,857.92/x
  3. Step 3: Cross multiply
    18,760,291.20x = 28,119,090.24 × 7,970,857.92
  4. Step 4: Simplify right side
    18,760,291.20x = 224,133,273,142,698.69
  5. Step 5: Solve for x
    x = 224,133,273,142,698.69/18,760,291.20
  6. Step 6: Final answer
    x = 11,947,217.17

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.