Home / 20,793,803.10-31,192,789.05-7,145,151.90

Finding the Fourth Proportional to 20,793,803.10, 31,192,789.05 and 7,145,151.90

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Solution

The fourth proportional to 20,793,803.10, 31,192,789.05 and 7,145,151.90 is: 10,718,444.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,793,803.10 : 31,192,789.05 = 7,145,151.90 : x
  2. Step 2: Convert to fraction form
    20,793,803.10/31,192,789.05 = 7,145,151.90/x
  3. Step 3: Cross multiply
    20,793,803.10x = 31,192,789.05 × 7,145,151.90
  4. Step 4: Simplify right side
    20,793,803.10x = 222,877,215,946,906.72
  5. Step 5: Solve for x
    x = 222,877,215,946,906.72/20,793,803.10
  6. Step 6: Final answer
    x = 10,718,444.09

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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.