Home / 80,178,037.20-120,267,055.80-55,991,566.80

Finding the Fourth Proportional to 80,178,037.20, 120,267,055.80 and 55,991,566.80

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Solution

The fourth proportional to 80,178,037.20, 120,267,055.80 and 55,991,566.80 is: 83,987,350.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,178,037.20 : 120,267,055.80 = 55,991,566.80 : x
  2. Step 2: Convert to fraction form
    80,178,037.20/120,267,055.80 = 55,991,566.80/x
  3. Step 3: Cross multiply
    80,178,037.20x = 120,267,055.80 × 55,991,566.80
  4. Step 4: Simplify right side
    80,178,037.20x = 6,733,940,888,665,027
  5. Step 5: Solve for x
    x = 6,733,940,888,665,027/80,178,037.20
  6. Step 6: Final answer
    x = 83,987,350.20

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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.