Home / 331,109,787,765.14-457,016,523,705.82-215,654,252,198.57

Finding the Fourth Proportional to 331,109,787,765.14, 457,016,523,705.82 and 215,654,252,198.57

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Solution

The fourth proportional to 331,109,787,765.14, 457,016,523,705.82 and 215,654,252,198.57 is: 297,658,239,967.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    331,109,787,765.14 : 457,016,523,705.82 = 215,654,252,198.57 : x
  2. Step 2: Convert to fraction form
    331,109,787,765.14/457,016,523,705.82 = 215,654,252,198.57/x
  3. Step 3: Cross multiply
    331,109,787,765.14x = 457,016,523,705.82 × 215,654,252,198.57
  4. Step 4: Simplify right side
    331,109,787,765.14x = 98,557,556,662,168,648,155,136
  5. Step 5: Solve for x
    x = 98,557,556,662,168,648,155,136/331,109,787,765.14
  6. Step 6: Final answer
    x = 297,658,239,967.45

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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.