Home / 20,231,503.40-30,347,255.10-19,895,580.20

Finding the Fourth Proportional to 20,231,503.40, 30,347,255.10 and 19,895,580.20

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Solution

The fourth proportional to 20,231,503.40, 30,347,255.10 and 19,895,580.20 is: 29,843,370.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,231,503.40 : 30,347,255.10 = 19,895,580.20 : x
  2. Step 2: Convert to fraction form
    20,231,503.40/30,347,255.10 = 19,895,580.20/x
  3. Step 3: Cross multiply
    20,231,503.40x = 30,347,255.10 × 19,895,580.20
  4. Step 4: Simplify right side
    20,231,503.40x = 603,776,247,691,909
  5. Step 5: Solve for x
    x = 603,776,247,691,909/20,231,503.40
  6. Step 6: Final answer
    x = 29,843,370.30

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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.