Home / 13,458,520.20-20,174,658.30-7,695,337.80

Finding the Fourth Proportional to 13,458,520.20, 20,174,658.30 and 7,695,337.80

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Solution

The fourth proportional to 13,458,520.20, 20,174,658.30 and 7,695,337.80 is: 11,535,503.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,458,520.20 : 20,174,658.30 = 7,695,337.80 : x
  2. Step 2: Convert to fraction form
    13,458,520.20/20,174,658.30 = 7,695,337.80/x
  3. Step 3: Cross multiply
    13,458,520.20x = 20,174,658.30 × 7,695,337.80
  4. Step 4: Simplify right side
    13,458,520.20x = 155,250,810,618,073.75
  5. Step 5: Solve for x
    x = 155,250,810,618,073.75/13,458,520.20
  6. Step 6: Final answer
    x = 11,535,503.78

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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.