Home / 20,261,169.12-30,403,857.81-18,612,757.92

Finding the Fourth Proportional to 20,261,169.12, 30,403,857.81 and 18,612,757.92

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Solution

The fourth proportional to 20,261,169.12, 30,403,857.81 and 18,612,757.92 is: 27,930,256.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,261,169.12 : 30,403,857.81 = 18,612,757.92 : x
  2. Step 2: Convert to fraction form
    20,261,169.12/30,403,857.81 = 18,612,757.92/x
  3. Step 3: Cross multiply
    20,261,169.12x = 30,403,857.81 × 18,612,757.92
  4. Step 4: Simplify right side
    20,261,169.12x = 565,899,645,251,631.38
  5. Step 5: Solve for x
    x = 565,899,645,251,631.38/20,261,169.12
  6. Step 6: Final answer
    x = 27,930,256.24

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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.