Home / 80,513,200.80-120,789,921.60-25,930,929.60

Finding the Fourth Proportional to 80,513,200.80, 120,789,921.60 and 25,930,929.60

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Solution

The fourth proportional to 80,513,200.80, 120,789,921.60 and 25,930,929.60 is: 38,902,874.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,513,200.80 : 120,789,921.60 = 25,930,929.60 : x
  2. Step 2: Convert to fraction form
    80,513,200.80/120,789,921.60 = 25,930,929.60/x
  3. Step 3: Cross multiply
    80,513,200.80x = 120,789,921.60 × 25,930,929.60
  4. Step 4: Simplify right side
    80,513,200.80x = 3,132,194,953,399,119.50
  5. Step 5: Solve for x
    x = 3,132,194,953,399,119.50/80,513,200.80
  6. Step 6: Final answer
    x = 38,902,874.59

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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.