Home / 126,469,969.60-189,704,954.40-75,451,633.60

Finding the Fourth Proportional to 126,469,969.60, 189,704,954.40 and 75,451,633.60

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Solution

The fourth proportional to 126,469,969.60, 189,704,954.40 and 75,451,633.60 is: 113,177,450.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,469,969.60 : 189,704,954.40 = 75,451,633.60 : x
  2. Step 2: Convert to fraction form
    126,469,969.60/189,704,954.40 = 75,451,633.60/x
  3. Step 3: Cross multiply
    126,469,969.60x = 189,704,954.40 × 75,451,633.60
  4. Step 4: Simplify right side
    126,469,969.60x = 14,313,548,711,493,508
  5. Step 5: Solve for x
    x = 14,313,548,711,493,508/126,469,969.60
  6. Step 6: Final answer
    x = 113,177,450.40

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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.