Home / 20,447,752.19-28,217,977.24-11,155,530.90

Finding the Fourth Proportional to 20,447,752.19, 28,217,977.24 and 11,155,530.90

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Solution

The fourth proportional to 20,447,752.19, 28,217,977.24 and 11,155,530.90 is: 15,394,675.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,447,752.19 : 28,217,977.24 = 11,155,530.90 : x
  2. Step 2: Convert to fraction form
    20,447,752.19/28,217,977.24 = 11,155,530.90/x
  3. Step 3: Cross multiply
    20,447,752.19x = 28,217,977.24 × 11,155,530.90
  4. Step 4: Simplify right side
    20,447,752.19x = 314,786,517,135,161.94
  5. Step 5: Solve for x
    x = 314,786,517,135,161.94/20,447,752.19
  6. Step 6: Final answer
    x = 15,394,675.87

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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.