Home / 126,144,042.40-189,216,063.60-54,340,458.40

Finding the Fourth Proportional to 126,144,042.40, 189,216,063.60 and 54,340,458.40

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Solution

The fourth proportional to 126,144,042.40, 189,216,063.60 and 54,340,458.40 is: 81,510,687.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,144,042.40 : 189,216,063.60 = 54,340,458.40 : x
  2. Step 2: Convert to fraction form
    126,144,042.40/189,216,063.60 = 54,340,458.40/x
  3. Step 3: Cross multiply
    126,144,042.40x = 189,216,063.60 × 54,340,458.40
  4. Step 4: Simplify right side
    126,144,042.40x = 10,282,087,632,667,554
  5. Step 5: Solve for x
    x = 10,282,087,632,667,554/126,144,042.40
  6. Step 6: Final answer
    x = 81,510,687.60

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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.