Home / 263,041,390.80-394,562,086.20-71,565,166.80

Finding the Fourth Proportional to 263,041,390.80, 394,562,086.20 and 71,565,166.80

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Solution

The fourth proportional to 263,041,390.80, 394,562,086.20 and 71,565,166.80 is: 107,347,750.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    263,041,390.80 : 394,562,086.20 = 71,565,166.80 : x
  2. Step 2: Convert to fraction form
    263,041,390.80/394,562,086.20 = 71,565,166.80/x
  3. Step 3: Cross multiply
    263,041,390.80x = 394,562,086.20 × 71,565,166.80
  4. Step 4: Simplify right side
    263,041,390.80x = 28,236,901,511,858,976
  5. Step 5: Solve for x
    x = 28,236,901,511,858,976/263,041,390.80
  6. Step 6: Final answer
    x = 107,347,750.20

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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.