Home / 80,120,287.30-120,317,964.82-49,177,642.84

Finding the Fourth Proportional to 80,120,287.30, 120,317,964.82 and 49,177,642.84

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Solution

The fourth proportional to 80,120,287.30, 120,317,964.82 and 49,177,642.84 is: 73,850,882.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,120,287.30 : 120,317,964.82 = 49,177,642.84 : x
  2. Step 2: Convert to fraction form
    80,120,287.30/120,317,964.82 = 49,177,642.84/x
  3. Step 3: Cross multiply
    80,120,287.30x = 120,317,964.82 × 49,177,642.84
  4. Step 4: Simplify right side
    80,120,287.30x = 5,916,953,901,683,564
  5. Step 5: Solve for x
    x = 5,916,953,901,683,564/80,120,287.30
  6. Step 6: Final answer
    x = 73,850,882.23

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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.