Home / 199,921,046.67-299,919,109.86-90,753,879.87

Finding the Fourth Proportional to 199,921,046.67, 299,919,109.86 and 90,753,879.87

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Solution

The fourth proportional to 199,921,046.67, 299,919,109.86 and 90,753,879.87 is: 136,147,860.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    199,921,046.67 : 299,919,109.86 = 90,753,879.87 : x
  2. Step 2: Convert to fraction form
    199,921,046.67/299,919,109.86 = 90,753,879.87/x
  3. Step 3: Cross multiply
    199,921,046.67x = 299,919,109.86 × 90,753,879.87
  4. Step 4: Simplify right side
    199,921,046.67x = 27,218,822,866,951,776
  5. Step 5: Solve for x
    x = 27,218,822,866,951,776/199,921,046.67
  6. Step 6: Final answer
    x = 136,147,860.97

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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.