Home / 126,396,961.55-189,642,681.53-49,773,404.51

Finding the Fourth Proportional to 126,396,961.55, 189,642,681.53 and 49,773,404.51

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Solution

The fourth proportional to 126,396,961.55, 189,642,681.53 and 49,773,404.51 is: 74,678,708.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,396,961.55 : 189,642,681.53 = 49,773,404.51 : x
  2. Step 2: Convert to fraction form
    126,396,961.55/189,642,681.53 = 49,773,404.51/x
  3. Step 3: Cross multiply
    126,396,961.55x = 189,642,681.53 × 49,773,404.51
  4. Step 4: Simplify right side
    126,396,961.55x = 9,439,161,899,904,928
  5. Step 5: Solve for x
    x = 9,439,161,899,904,928/126,396,961.55
  6. Step 6: Final answer
    x = 74,678,708.92

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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.