Home / 263,263,670.10-394,895,505.15-198,215,291.70

Finding the Fourth Proportional to 263,263,670.10, 394,895,505.15 and 198,215,291.70

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Solution

The fourth proportional to 263,263,670.10, 394,895,505.15 and 198,215,291.70 is: 297,322,937.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    263,263,670.10 : 394,895,505.15 = 198,215,291.70 : x
  2. Step 2: Convert to fraction form
    263,263,670.10/394,895,505.15 = 198,215,291.70/x
  3. Step 3: Cross multiply
    263,263,670.10x = 394,895,505.15 × 198,215,291.70
  4. Step 4: Simplify right side
    263,263,670.10x = 78,274,327,744,326,096
  5. Step 5: Solve for x
    x = 78,274,327,744,326,096/263,263,670.10
  6. Step 6: Final answer
    x = 297,322,937.55

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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.