Home / 381,940,634.60-527,070,937.38-212,405,269.40

Finding the Fourth Proportional to 381,940,634.60, 527,070,937.38 and 212,405,269.40

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Solution

The fourth proportional to 381,940,634.60, 527,070,937.38 and 212,405,269.40 is: 293,115,301.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    381,940,634.60 : 527,070,937.38 = 212,405,269.40 : x
  2. Step 2: Convert to fraction form
    381,940,634.60/527,070,937.38 = 212,405,269.40/x
  3. Step 3: Cross multiply
    381,940,634.60x = 527,070,937.38 × 212,405,269.40
  4. Step 4: Simplify right side
    381,940,634.60x = 111,952,644,447,109,440
  5. Step 5: Solve for x
    x = 111,952,644,447,109,440/381,940,634.60
  6. Step 6: Final answer
    x = 293,115,301.97

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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.