Home / 13,486,542.40-20,229,813.60-8,942,721.85

Finding the Fourth Proportional to 13,486,542.40, 20,229,813.60 and 8,942,721.85

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Solution

The fourth proportional to 13,486,542.40, 20,229,813.60 and 8,942,721.85 is: 13,414,082.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,486,542.40 : 20,229,813.60 = 8,942,721.85 : x
  2. Step 2: Convert to fraction form
    13,486,542.40/20,229,813.60 = 8,942,721.85/x
  3. Step 3: Cross multiply
    13,486,542.40x = 20,229,813.60 × 8,942,721.85
  4. Step 4: Simplify right side
    13,486,542.40x = 180,909,596,102,147.16
  5. Step 5: Solve for x
    x = 180,909,596,102,147.16/13,486,542.40
  6. Step 6: Final answer
    x = 13,414,082.78

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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.