Home / 20,794,301.10-31,193,536.05-7,145,649.90

Finding the Fourth Proportional to 20,794,301.10, 31,193,536.05 and 7,145,649.90

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Solution

The fourth proportional to 20,794,301.10, 31,193,536.05 and 7,145,649.90 is: 10,719,191.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,794,301.10 : 31,193,536.05 = 7,145,649.90 : x
  2. Step 2: Convert to fraction form
    20,794,301.10/31,193,536.05 = 7,145,649.90/x
  3. Step 3: Cross multiply
    20,794,301.10x = 31,193,536.05 × 7,145,649.90
  4. Step 4: Simplify right side
    20,794,301.10x = 222,898,087,756,328.91
  5. Step 5: Solve for x
    x = 222,898,087,756,328.91/20,794,301.10
  6. Step 6: Final answer
    x = 10,719,191.12

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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.