Home / 72,770,791.80-109,156,187.70-52,257,169.20

Finding the Fourth Proportional to 72,770,791.80, 109,156,187.70 and 52,257,169.20

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Solution

The fourth proportional to 72,770,791.80, 109,156,187.70 and 52,257,169.20 is: 78,385,753.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,770,791.80 : 109,156,187.70 = 52,257,169.20 : x
  2. Step 2: Convert to fraction form
    72,770,791.80/109,156,187.70 = 52,257,169.20/x
  3. Step 3: Cross multiply
    72,770,791.80x = 109,156,187.70 × 52,257,169.20
  4. Step 4: Simplify right side
    72,770,791.80x = 5,704,193,369,865,859
  5. Step 5: Solve for x
    x = 5,704,193,369,865,859/72,770,791.80
  6. Step 6: Final answer
    x = 78,385,753.80

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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.