Home / 815,923,374.30-1,224,123,823.53-263,215,169.82

Finding the Fourth Proportional to 815,923,374.30, 1,224,123,823.53 and 263,215,169.82

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Solution

The fourth proportional to 815,923,374.30, 1,224,123,823.53 and 263,215,169.82 is: 394,899,778.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    815,923,374.30 : 1,224,123,823.53 = 263,215,169.82 : x
  2. Step 2: Convert to fraction form
    815,923,374.30/1,224,123,823.53 = 263,215,169.82/x
  3. Step 3: Cross multiply
    815,923,374.30x = 1,224,123,823.53 × 263,215,169.82
  4. Step 4: Simplify right side
    815,923,374.30x = 322,207,960,091,156,672
  5. Step 5: Solve for x
    x = 322,207,960,091,156,672/815,923,374.30
  6. Step 6: Final answer
    x = 394,899,778.88

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.