Home / 80,267,797.98-120,452,085.45-75,102,978.78

Finding the Fourth Proportional to 80,267,797.98, 120,452,085.45 and 75,102,978.78

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Solution

The fourth proportional to 80,267,797.98, 120,452,085.45 and 75,102,978.78 is: 112,701,614.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,267,797.98 : 120,452,085.45 = 75,102,978.78 : x
  2. Step 2: Convert to fraction form
    80,267,797.98/120,452,085.45 = 75,102,978.78/x
  3. Step 3: Cross multiply
    80,267,797.98x = 120,452,085.45 × 75,102,978.78
  4. Step 4: Simplify right side
    80,267,797.98x = 9,046,310,417,558,098
  5. Step 5: Solve for x
    x = 9,046,310,417,558,098/80,267,797.98
  6. Step 6: Final answer
    x = 112,701,614.41

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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.