Home / 20,351,308.60-30,517,340.10-11,834,255.80

Finding the Fourth Proportional to 20,351,308.60, 30,517,340.10 and 11,834,255.80

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Solution

The fourth proportional to 20,351,308.60, 30,517,340.10 and 11,834,255.80 is: 17,745,788.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,351,308.60 : 30,517,340.10 = 11,834,255.80 : x
  2. Step 2: Convert to fraction form
    20,351,308.60/30,517,340.10 = 11,834,255.80/x
  3. Step 3: Cross multiply
    20,351,308.60x = 30,517,340.10 × 11,834,255.80
  4. Step 4: Simplify right side
    20,351,308.60x = 361,150,009,078,997.62
  5. Step 5: Solve for x
    x = 361,150,009,078,997.62/20,351,308.60
  6. Step 6: Final answer
    x = 17,745,788.06

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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.