Home / 263,263,359.60-394,895,039.40-198,214,981.20

Finding the Fourth Proportional to 263,263,359.60, 394,895,039.40 and 198,214,981.20

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Solution

The fourth proportional to 263,263,359.60, 394,895,039.40 and 198,214,981.20 is: 297,322,471.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    263,263,359.60 : 394,895,039.40 = 198,214,981.20 : x
  2. Step 2: Convert to fraction form
    263,263,359.60/394,895,039.40 = 198,214,981.20/x
  3. Step 3: Cross multiply
    263,263,359.60x = 394,895,039.40 × 198,214,981.20
  4. Step 4: Simplify right side
    263,263,359.60x = 78,274,112,810,644,256
  5. Step 5: Solve for x
    x = 78,274,112,810,644,256/263,263,359.60
  6. Step 6: Final answer
    x = 297,322,471.80

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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.