Home / 263,267,999.60-394,901,999.40-198,219,621.20

Finding the Fourth Proportional to 263,267,999.60, 394,901,999.40 and 198,219,621.20

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Solution

The fourth proportional to 263,267,999.60, 394,901,999.40 and 198,219,621.20 is: 297,329,431.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    263,267,999.60 : 394,901,999.40 = 198,219,621.20 : x
  2. Step 2: Convert to fraction form
    263,267,999.60/394,901,999.40 = 198,219,621.20/x
  3. Step 3: Cross multiply
    263,267,999.60x = 394,901,999.40 × 198,219,621.20
  4. Step 4: Simplify right side
    263,267,999.60x = 78,277,324,732,190,624
  5. Step 5: Solve for x
    x = 78,277,324,732,190,624/263,267,999.60
  6. Step 6: Final answer
    x = 297,329,431.80

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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.