Home / 126,029,129.80-189,043,694.70-106,545,584.20

Finding the Fourth Proportional to 126,029,129.80, 189,043,694.70 and 106,545,584.20

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Solution

The fourth proportional to 126,029,129.80, 189,043,694.70 and 106,545,584.20 is: 159,818,376.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,029,129.80 : 189,043,694.70 = 106,545,584.20 : x
  2. Step 2: Convert to fraction form
    126,029,129.80/189,043,694.70 = 106,545,584.20/x
  3. Step 3: Cross multiply
    126,029,129.80x = 189,043,694.70 × 106,545,584.20
  4. Step 4: Simplify right side
    126,029,129.80x = 20,141,770,891,137,944
  5. Step 5: Solve for x
    x = 20,141,770,891,137,944/126,029,129.80
  6. Step 6: Final answer
    x = 159,818,376.30

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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.