Home / 217,225,029.96-299,780,789.76-123,141,000.36

Finding the Fourth Proportional to 217,225,029.96, 299,780,789.76 and 123,141,000.36

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Solution

The fourth proportional to 217,225,029.96, 299,780,789.76 and 123,141,000.36 is: 169,940,390.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    217,225,029.96 : 299,780,789.76 = 123,141,000.36 : x
  2. Step 2: Convert to fraction form
    217,225,029.96/299,780,789.76 = 123,141,000.36/x
  3. Step 3: Cross multiply
    217,225,029.96x = 299,780,789.76 × 123,141,000.36
  4. Step 4: Simplify right side
    217,225,029.96x = 36,915,306,339,757,240
  5. Step 5: Solve for x
    x = 36,915,306,339,757,240/217,225,029.96
  6. Step 6: Final answer
    x = 169,940,390.14

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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.