Home / 386,673,505.11-533,654,874.59-217,155,601.76

Finding the Fourth Proportional to 386,673,505.11, 533,654,874.59 and 217,155,601.76

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Solution

The fourth proportional to 386,673,505.11, 533,654,874.59 and 217,155,601.76 is: 299,700,248.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    386,673,505.11 : 533,654,874.59 = 217,155,601.76 : x
  2. Step 2: Convert to fraction form
    386,673,505.11/533,654,874.59 = 217,155,601.76/x
  3. Step 3: Cross multiply
    386,673,505.11x = 533,654,874.59 × 217,155,601.76
  4. Step 4: Simplify right side
    386,673,505.11x = 115,886,145,419,994,720
  5. Step 5: Solve for x
    x = 115,886,145,419,994,720/386,673,505.11
  6. Step 6: Final answer
    x = 299,700,248.11

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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.