Home / 18,872,757.12-28,309,209.48-5,742,305.73

Finding the Fourth Proportional to 18,872,757.12, 28,309,209.48 and 5,742,305.73

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Solution

The fourth proportional to 18,872,757.12, 28,309,209.48 and 5,742,305.73 is: 8,613,481.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,872,757.12 : 28,309,209.48 = 5,742,305.73 : x
  2. Step 2: Convert to fraction form
    18,872,757.12/28,309,209.48 = 5,742,305.73/x
  3. Step 3: Cross multiply
    18,872,757.12x = 28,309,209.48 × 5,742,305.73
  4. Step 4: Simplify right side
    18,872,757.12x = 162,560,135,667,228.25
  5. Step 5: Solve for x
    x = 162,560,135,667,228.25/18,872,757.12
  6. Step 6: Final answer
    x = 8,613,481.04

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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.