Home / 69,984,651.60-104,976,977.40-21,469,993.20

Finding the Fourth Proportional to 69,984,651.60, 104,976,977.40 and 21,469,993.20

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Solution

The fourth proportional to 69,984,651.60, 104,976,977.40 and 21,469,993.20 is: 32,204,989.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,984,651.60 : 104,976,977.40 = 21,469,993.20 : x
  2. Step 2: Convert to fraction form
    69,984,651.60/104,976,977.40 = 21,469,993.20/x
  3. Step 3: Cross multiply
    69,984,651.60x = 104,976,977.40 × 21,469,993.20
  4. Step 4: Simplify right side
    69,984,651.60x = 2,253,854,990,934,553.50
  5. Step 5: Solve for x
    x = 2,253,854,990,934,553.50/69,984,651.60
  6. Step 6: Final answer
    x = 32,204,989.80

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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.