Home / 20,391,498.26-28,120,706.98-13,700,960.92

Finding the Fourth Proportional to 20,391,498.26, 28,120,706.98 and 13,700,960.92

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Solution

The fourth proportional to 20,391,498.26, 28,120,706.98 and 13,700,960.92 is: 18,894,183.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,391,498.26 : 28,120,706.98 = 13,700,960.92 : x
  2. Step 2: Convert to fraction form
    20,391,498.26/28,120,706.98 = 13,700,960.92/x
  3. Step 3: Cross multiply
    20,391,498.26x = 28,120,706.98 × 13,700,960.92
  4. Step 4: Simplify right side
    20,391,498.26x = 385,280,707,375,751.25
  5. Step 5: Solve for x
    x = 385,280,707,375,751.25/20,391,498.26
  6. Step 6: Final answer
    x = 18,894,183.37

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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.