Home / 442,679,479.11-664,162,887.25-131,789,784.18

Finding the Fourth Proportional to 442,679,479.11, 664,162,887.25 and 131,789,784.18

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Solution

The fourth proportional to 442,679,479.11, 664,162,887.25 and 131,789,784.18 is: 197,727,447.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    442,679,479.11 : 664,162,887.25 = 131,789,784.18 : x
  2. Step 2: Convert to fraction form
    442,679,479.11/664,162,887.25 = 131,789,784.18/x
  3. Step 3: Cross multiply
    442,679,479.11x = 664,162,887.25 × 131,789,784.18
  4. Step 4: Simplify right side
    442,679,479.11x = 87,529,883,568,223,072
  5. Step 5: Solve for x
    x = 87,529,883,568,223,072/442,679,479.11
  6. Step 6: Final answer
    x = 197,727,447.73

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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.