Home / 442,679,480.24-664,162,888.94-131,789,785.31

Finding the Fourth Proportional to 442,679,480.24, 664,162,888.94 and 131,789,785.31

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Solution

The fourth proportional to 442,679,480.24, 664,162,888.94 and 131,789,785.31 is: 197,727,449.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    442,679,480.24 : 664,162,888.94 = 131,789,785.31 : x
  2. Step 2: Convert to fraction form
    442,679,480.24/664,162,888.94 = 131,789,785.31/x
  3. Step 3: Cross multiply
    442,679,480.24x = 664,162,888.94 × 131,789,785.31
  4. Step 4: Simplify right side
    442,679,480.24x = 87,529,884,540,292,208
  5. Step 5: Solve for x
    x = 87,529,884,540,292,208/442,679,480.24
  6. Step 6: Final answer
    x = 197,727,449.43

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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.