Home / 331,109,787,775.54-457,016,523,720.20-215,654,252,208.97

Finding the Fourth Proportional to 331,109,787,775.54, 457,016,523,720.20 and 215,654,252,208.97

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Solution

The fourth proportional to 331,109,787,775.54, 457,016,523,720.20 and 215,654,252,208.97 is: 297,658,239,981.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    331,109,787,775.54 : 457,016,523,720.20 = 215,654,252,208.97 : x
  2. Step 2: Convert to fraction form
    331,109,787,775.54/457,016,523,720.20 = 215,654,252,208.97/x
  3. Step 3: Cross multiply
    331,109,787,775.54x = 457,016,523,720.20 × 215,654,252,208.97
  4. Step 4: Simplify right side
    331,109,787,775.54x = 98,557,556,670,022,734,053,376
  5. Step 5: Solve for x
    x = 98,557,556,670,022,734,053,376/331,109,787,775.54
  6. Step 6: Final answer
    x = 297,658,239,981.83

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1.5x scale

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.