Home / 80,775,282.12-111,478,665.42-49,834,655.88

Finding the Fourth Proportional to 80,775,282.12, 111,478,665.42 and 49,834,655.88

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Solution

The fourth proportional to 80,775,282.12, 111,478,665.42 and 49,834,655.88 is: 68,777,239.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,775,282.12 : 111,478,665.42 = 49,834,655.88 : x
  2. Step 2: Convert to fraction form
    80,775,282.12/111,478,665.42 = 49,834,655.88/x
  3. Step 3: Cross multiply
    80,775,282.12x = 111,478,665.42 × 49,834,655.88
  4. Step 4: Simplify right side
    80,775,282.12x = 5,555,500,929,167,356
  5. Step 5: Solve for x
    x = 5,555,500,929,167,356/80,775,282.12
  6. Step 6: Final answer
    x = 68,777,239.56

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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.