Home / 263,056,812.80-394,585,219.20-255,498,540.80

Finding the Fourth Proportional to 263,056,812.80, 394,585,219.20 and 255,498,540.80

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Solution

The fourth proportional to 263,056,812.80, 394,585,219.20 and 255,498,540.80 is: 383,247,811.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    263,056,812.80 : 394,585,219.20 = 255,498,540.80 : x
  2. Step 2: Convert to fraction form
    263,056,812.80/394,585,219.20 = 255,498,540.80/x
  3. Step 3: Cross multiply
    263,056,812.80x = 394,585,219.20 × 255,498,540.80
  4. Step 4: Simplify right side
    263,056,812.80x = 100,815,947,726,848,144
  5. Step 5: Solve for x
    x = 100,815,947,726,848,144/263,056,812.80
  6. Step 6: Final answer
    x = 383,247,811.20

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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.