Home / 28,385,589-39,172,127.94-15,332,847.66

Finding the Fourth Proportional to 28,385,589, 39,172,127.94 and 15,332,847.66

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Solution

The fourth proportional to 28,385,589, 39,172,127.94 and 15,332,847.66 is: 21,159,337.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,385,589 : 39,172,127.94 = 15,332,847.66 : x
  2. Step 2: Convert to fraction form
    28,385,589/39,172,127.94 = 15,332,847.66/x
  3. Step 3: Cross multiply
    28,385,589x = 39,172,127.94 × 15,332,847.66
  4. Step 4: Simplify right side
    28,385,589x = 600,620,270,222,049.62
  5. Step 5: Solve for x
    x = 600,620,270,222,049.62/28,385,589
  6. Step 6: Final answer
    x = 21,159,337.94

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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.