Home / 80,753,851.12-111,440,207.64-51,780,406

Finding the Fourth Proportional to 80,753,851.12, 111,440,207.64 and 51,780,406

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Solution

The fourth proportional to 80,753,851.12, 111,440,207.64 and 51,780,406 is: 71,456,891.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,753,851.12 : 111,440,207.64 = 51,780,406 : x
  2. Step 2: Convert to fraction form
    80,753,851.12/111,440,207.64 = 51,780,406/x
  3. Step 3: Cross multiply
    80,753,851.12x = 111,440,207.64 × 51,780,406
  4. Step 4: Simplify right side
    80,753,851.12x = 5,770,419,196,323,502
  5. Step 5: Solve for x
    x = 5,770,419,196,323,502/80,753,851.12
  6. Step 6: Final answer
    x = 71,456,891.73

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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.