Home / 442,679,481.24-664,162,890.44-131,789,786.31

Finding the Fourth Proportional to 442,679,481.24, 664,162,890.44 and 131,789,786.31

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Solution

The fourth proportional to 442,679,481.24, 664,162,890.44 and 131,789,786.31 is: 197,727,450.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    442,679,481.24 : 664,162,890.44 = 131,789,786.31 : x
  2. Step 2: Convert to fraction form
    442,679,481.24/664,162,890.44 = 131,789,786.31/x
  3. Step 3: Cross multiply
    442,679,481.24x = 664,162,890.44 × 131,789,786.31
  4. Step 4: Simplify right side
    442,679,481.24x = 87,529,885,406,119,552
  5. Step 5: Solve for x
    x = 87,529,885,406,119,552/442,679,481.24
  6. Step 6: Final answer
    x = 197,727,450.93

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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.