Home / 22,619,919.50-31,212,991.20-12,694,525.70

Finding the Fourth Proportional to 22,619,919.50, 31,212,991.20 and 12,694,525.70

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Solution

The fourth proportional to 22,619,919.50, 31,212,991.20 and 12,694,525.70 is: 17,517,043.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,619,919.50 : 31,212,991.20 = 12,694,525.70 : x
  2. Step 2: Convert to fraction form
    22,619,919.50/31,212,991.20 = 12,694,525.70/x
  3. Step 3: Cross multiply
    22,619,919.50x = 31,212,991.20 × 12,694,525.70
  4. Step 4: Simplify right side
    22,619,919.50x = 396,234,118,962,273.81
  5. Step 5: Solve for x
    x = 396,234,118,962,273.81/22,619,919.50
  6. Step 6: Final answer
    x = 17,517,043.73

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.