Home / 217,225,027.94-299,780,787-123,140,998.38

Finding the Fourth Proportional to 217,225,027.94, 299,780,787 and 123,140,998.38

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Solution

The fourth proportional to 217,225,027.94, 299,780,787 and 123,140,998.38 is: 169,940,387.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    217,225,027.94 : 299,780,787 = 123,140,998.38 : x
  2. Step 2: Convert to fraction form
    217,225,027.94/299,780,787 = 123,140,998.38/x
  3. Step 3: Cross multiply
    217,225,027.94x = 299,780,787 × 123,140,998.38
  4. Step 4: Simplify right side
    217,225,027.94x = 36,915,305,406,322,120
  5. Step 5: Solve for x
    x = 36,915,305,406,322,120/217,225,027.94
  6. Step 6: Final answer
    x = 169,940,387.42

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.