Home / 13,617,581.11-20,422,385.85-11,215,467.79

Finding the Fourth Proportional to 13,617,581.11, 20,422,385.85 and 11,215,467.79

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Solution

The fourth proportional to 13,617,581.11, 20,422,385.85 and 11,215,467.79 is: 16,819,918.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,617,581.11 : 20,422,385.85 = 11,215,467.79 : x
  2. Step 2: Convert to fraction form
    13,617,581.11/20,422,385.85 = 11,215,467.79/x
  3. Step 3: Cross multiply
    13,617,581.11x = 20,422,385.85 × 11,215,467.79
  4. Step 4: Simplify right side
    13,617,581.11x = 229,046,610,695,626.78
  5. Step 5: Solve for x
    x = 229,046,610,695,626.78/13,617,581.11
  6. Step 6: Final answer
    x = 16,819,918.96

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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.