Home / 442,679,481.74-664,162,891.19-131,789,786.81

Finding the Fourth Proportional to 442,679,481.74, 664,162,891.19 and 131,789,786.81

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Solution

The fourth proportional to 442,679,481.74, 664,162,891.19 and 131,789,786.81 is: 197,727,451.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    442,679,481.74 : 664,162,891.19 = 131,789,786.81 : x
  2. Step 2: Convert to fraction form
    442,679,481.74/664,162,891.19 = 131,789,786.81/x
  3. Step 3: Cross multiply
    442,679,481.74x = 664,162,891.19 × 131,789,786.81
  4. Step 4: Simplify right side
    442,679,481.74x = 87,529,885,833,063,568
  5. Step 5: Solve for x
    x = 87,529,885,833,063,568/442,679,481.74
  6. Step 6: Final answer
    x = 197,727,451.68

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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.