Home / 256,165,650.14-353,508,089.55-138,690,948.38

Finding the Fourth Proportional to 256,165,650.14, 353,508,089.55 and 138,690,948.38

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Solution

The fourth proportional to 256,165,650.14, 353,508,089.55 and 138,690,948.38 is: 191,393,233.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    256,165,650.14 : 353,508,089.55 = 138,690,948.38 : x
  2. Step 2: Convert to fraction form
    256,165,650.14/353,508,089.55 = 138,690,948.38/x
  3. Step 3: Cross multiply
    256,165,650.14x = 353,508,089.55 × 138,690,948.38
  4. Step 4: Simplify right side
    256,165,650.14x = 49,028,372,199,691,464
  5. Step 5: Solve for x
    x = 49,028,372,199,691,464/256,165,650.14
  6. Step 6: Final answer
    x = 191,393,233.92

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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.