Home / 80,259,080.80-120,388,621.20-29,142,767.20

Finding the Fourth Proportional to 80,259,080.80, 120,388,621.20 and 29,142,767.20

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Solution

The fourth proportional to 80,259,080.80, 120,388,621.20 and 29,142,767.20 is: 43,714,150.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,259,080.80 : 120,388,621.20 = 29,142,767.20 : x
  2. Step 2: Convert to fraction form
    80,259,080.80/120,388,621.20 = 29,142,767.20/x
  3. Step 3: Cross multiply
    80,259,080.80x = 120,388,621.20 × 29,142,767.20
  4. Step 4: Simplify right side
    80,259,080.80x = 3,508,457,561,160,584.50
  5. Step 5: Solve for x
    x = 3,508,457,561,160,584.50/80,259,080.80
  6. Step 6: Final answer
    x = 43,714,150.80

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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.