Home / 126,381,170.20-189,252,890.70-100,872,002.20

Finding the Fourth Proportional to 126,381,170.20, 189,252,890.70 and 100,872,002.20

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Solution

The fourth proportional to 126,381,170.20, 189,252,890.70 and 100,872,002.20 is: 151,053,499.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,381,170.20 : 189,252,890.70 = 100,872,002.20 : x
  2. Step 2: Convert to fraction form
    126,381,170.20/189,252,890.70 = 100,872,002.20/x
  3. Step 3: Cross multiply
    126,381,170.20x = 189,252,890.70 × 100,872,002.20
  4. Step 4: Simplify right side
    126,381,170.20x = 19,090,318,007,046,760
  5. Step 5: Solve for x
    x = 19,090,318,007,046,760/126,381,170.20
  6. Step 6: Final answer
    x = 151,053,499.32

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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.