Home / 20,385,696.50-28,132,265.74-11,218,339.24

Finding the Fourth Proportional to 20,385,696.50, 28,132,265.74 and 11,218,339.24

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Solution

The fourth proportional to 20,385,696.50, 28,132,265.74 and 11,218,339.24 is: 15,481,310.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,385,696.50 : 28,132,265.74 = 11,218,339.24 : x
  2. Step 2: Convert to fraction form
    20,385,696.50/28,132,265.74 = 11,218,339.24/x
  3. Step 3: Cross multiply
    20,385,696.50x = 28,132,265.74 × 11,218,339.24
  4. Step 4: Simplify right side
    20,385,696.50x = 315,597,300,661,149.62
  5. Step 5: Solve for x
    x = 315,597,300,661,149.62/20,385,696.50
  6. Step 6: Final answer
    x = 15,481,310.67

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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.