Home / 20,361,076.92-28,098,468.81-11,068,664.58

Finding the Fourth Proportional to 20,361,076.92, 28,098,468.81 and 11,068,664.58

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Solution

The fourth proportional to 20,361,076.92, 28,098,468.81 and 11,068,664.58 is: 15,274,856.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,361,076.92 : 28,098,468.81 = 11,068,664.58 : x
  2. Step 2: Convert to fraction form
    20,361,076.92/28,098,468.81 = 11,068,664.58/x
  3. Step 3: Cross multiply
    20,361,076.92x = 28,098,468.81 × 11,068,664.58
  4. Step 4: Simplify right side
    20,361,076.92x = 311,012,526,469,481.75
  5. Step 5: Solve for x
    x = 311,012,526,469,481.75/20,361,076.92
  6. Step 6: Final answer
    x = 15,274,856.42

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.