Home / 689,157,236.43-951,117,389.24-391,844,026.75

Finding the Fourth Proportional to 689,157,236.43, 951,117,389.24 and 391,844,026.75

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Solution

The fourth proportional to 689,157,236.43, 951,117,389.24 and 391,844,026.75 is: 540,790,472.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    689,157,236.43 : 951,117,389.24 = 391,844,026.75 : x
  2. Step 2: Convert to fraction form
    689,157,236.43/951,117,389.24 = 391,844,026.75/x
  3. Step 3: Cross multiply
    689,157,236.43x = 951,117,389.24 × 391,844,026.75
  4. Step 4: Simplify right side
    689,157,236.43x = 372,689,667,710,978,432
  5. Step 5: Solve for x
    x = 372,689,667,710,978,432/689,157,236.43
  6. Step 6: Final answer
    x = 540,790,472.78

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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.