Home / 20,519,404.38-30,758,809.05-9,717,723.90

Finding the Fourth Proportional to 20,519,404.38, 30,758,809.05 and 9,717,723.90

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Solution

The fourth proportional to 20,519,404.38, 30,758,809.05 and 9,717,723.90 is: 14,566,973.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,519,404.38 : 30,758,809.05 = 9,717,723.90 : x
  2. Step 2: Convert to fraction form
    20,519,404.38/30,758,809.05 = 9,717,723.90/x
  3. Step 3: Cross multiply
    20,519,404.38x = 30,758,809.05 × 9,717,723.90
  4. Step 4: Simplify right side
    20,519,404.38x = 298,905,613,840,721.31
  5. Step 5: Solve for x
    x = 298,905,613,840,721.31/20,519,404.38
  6. Step 6: Final answer
    x = 14,566,973.21

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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.