Home / 20,555,250.91-30,836,765.08-8,260,171.34

Finding the Fourth Proportional to 20,555,250.91, 30,836,765.08 and 8,260,171.34

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Solution

The fourth proportional to 20,555,250.91, 30,836,765.08 and 8,260,171.34 is: 12,391,819.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,555,250.91 : 30,836,765.08 = 8,260,171.34 : x
  2. Step 2: Convert to fraction form
    20,555,250.91/30,836,765.08 = 8,260,171.34/x
  3. Step 3: Cross multiply
    20,555,250.91x = 30,836,765.08 × 8,260,171.34
  4. Step 4: Simplify right side
    20,555,250.91x = 254,716,963,132,128.78
  5. Step 5: Solve for x
    x = 254,716,963,132,128.78/20,555,250.91
  6. Step 6: Final answer
    x = 12,391,819.70

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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.