Home / 31,508,198.40-47,167,819.20-18,722,121.60

Finding the Fourth Proportional to 31,508,198.40, 47,167,819.20 and 18,722,121.60

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Solution

The fourth proportional to 31,508,198.40, 47,167,819.20 and 18,722,121.60 is: 28,027,043.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,508,198.40 : 47,167,819.20 = 18,722,121.60 : x
  2. Step 2: Convert to fraction form
    31,508,198.40/47,167,819.20 = 18,722,121.60/x
  3. Step 3: Cross multiply
    31,508,198.40x = 47,167,819.20 × 18,722,121.60
  4. Step 4: Simplify right side
    31,508,198.40x = 883,081,646,669,214.88
  5. Step 5: Solve for x
    x = 883,081,646,669,214.88/31,508,198.40
  6. Step 6: Final answer
    x = 28,027,043.48

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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.