Home / 139,231,209.62-192,127,821.07-80,497,659.75

Finding the Fourth Proportional to 139,231,209.62, 192,127,821.07 and 80,497,659.75

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Solution

The fourth proportional to 139,231,209.62, 192,127,821.07 and 80,497,659.75 is: 111,080,267.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    139,231,209.62 : 192,127,821.07 = 80,497,659.75 : x
  2. Step 2: Convert to fraction form
    139,231,209.62/192,127,821.07 = 80,497,659.75/x
  3. Step 3: Cross multiply
    139,231,209.62x = 192,127,821.07 × 80,497,659.75
  4. Step 4: Simplify right side
    139,231,209.62x = 15,465,839,969,001,740
  5. Step 5: Solve for x
    x = 15,465,839,969,001,740/139,231,209.62
  6. Step 6: Final answer
    x = 111,080,267.21

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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.