Home / 126,396,961.80-189,642,681.90-49,773,404.76

Finding the Fourth Proportional to 126,396,961.80, 189,642,681.90 and 49,773,404.76

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Solution

The fourth proportional to 126,396,961.80, 189,642,681.90 and 49,773,404.76 is: 74,678,709.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,396,961.80 : 189,642,681.90 = 49,773,404.76 : x
  2. Step 2: Convert to fraction form
    126,396,961.80/189,642,681.90 = 49,773,404.76/x
  3. Step 3: Cross multiply
    126,396,961.80x = 189,642,681.90 × 49,773,404.76
  4. Step 4: Simplify right side
    126,396,961.80x = 9,439,161,965,980,626
  5. Step 5: Solve for x
    x = 9,439,161,965,980,626/126,396,961.80
  6. Step 6: Final answer
    x = 74,678,709.29

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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.