Home / 80,340,759.90-120,410,276.49-43,451,180.46

Finding the Fourth Proportional to 80,340,759.90, 120,410,276.49 and 43,451,180.46

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Solution

The fourth proportional to 80,340,759.90, 120,410,276.49 and 43,451,180.46 is: 65,122,220.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,340,759.90 : 120,410,276.49 = 43,451,180.46 : x
  2. Step 2: Convert to fraction form
    80,340,759.90/120,410,276.49 = 43,451,180.46/x
  3. Step 3: Cross multiply
    80,340,759.90x = 120,410,276.49 × 43,451,180.46
  4. Step 4: Simplify right side
    80,340,759.90x = 5,231,968,653,005,485
  5. Step 5: Solve for x
    x = 5,231,968,653,005,485/80,340,759.90
  6. Step 6: Final answer
    x = 65,122,220.15

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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.