Home / 384,865,601,472.85-531,115,055,977.17-208,882,070,120.61

Finding the Fourth Proportional to 384,865,601,472.85, 531,115,055,977.17 and 208,882,070,120.61

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Solution

The fourth proportional to 384,865,601,472.85, 531,115,055,977.17 and 208,882,070,120.61 is: 288,257,542,217.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    384,865,601,472.85 : 531,115,055,977.17 = 208,882,070,120.61 : x
  2. Step 2: Convert to fraction form
    384,865,601,472.85/531,115,055,977.17 = 208,882,070,120.61/x
  3. Step 3: Cross multiply
    384,865,601,472.85x = 531,115,055,977.17 × 208,882,070,120.61
  4. Step 4: Simplify right side
    384,865,601,472.85x = 110,940,412,364,734,924,324,864
  5. Step 5: Solve for x
    x = 110,940,412,364,734,924,324,864/384,865,601,472.85
  6. Step 6: Final answer
    x = 288,257,542,217.79

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.