Home / 72,887,568.20-109,331,464.32-29,188,005.80

Finding the Fourth Proportional to 72,887,568.20, 109,331,464.32 and 29,188,005.80

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Solution

The fourth proportional to 72,887,568.20, 109,331,464.32 and 29,188,005.80 is: 43,782,053.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,887,568.20 : 109,331,464.32 = 29,188,005.80 : x
  2. Step 2: Convert to fraction form
    72,887,568.20/109,331,464.32 = 29,188,005.80/x
  3. Step 3: Cross multiply
    72,887,568.20x = 109,331,464.32 × 29,188,005.80
  4. Step 4: Simplify right side
    72,887,568.20x = 3,191,167,414,694,653
  5. Step 5: Solve for x
    x = 3,191,167,414,694,653/72,887,568.20
  6. Step 6: Final answer
    x = 43,782,053.56

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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.