Home / 20,198,530.88-27,874,660.46-11,945,667.68

Finding the Fourth Proportional to 20,198,530.88, 27,874,660.46 and 11,945,667.68

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Solution

The fourth proportional to 20,198,530.88, 27,874,660.46 and 11,945,667.68 is: 16,485,428.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,198,530.88 : 27,874,660.46 = 11,945,667.68 : x
  2. Step 2: Convert to fraction form
    20,198,530.88/27,874,660.46 = 11,945,667.68/x
  3. Step 3: Cross multiply
    20,198,530.88x = 27,874,660.46 × 11,945,667.68
  4. Step 4: Simplify right side
    20,198,530.88x = 332,981,430,520,618.69
  5. Step 5: Solve for x
    x = 332,981,430,520,618.69/20,198,530.88
  6. Step 6: Final answer
    x = 16,485,428.20

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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.