Home / 263,267,999.10-394,901,998.65-198,219,620.70

Finding the Fourth Proportional to 263,267,999.10, 394,901,998.65 and 198,219,620.70

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Solution

The fourth proportional to 263,267,999.10, 394,901,998.65 and 198,219,620.70 is: 297,329,431.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    263,267,999.10 : 394,901,998.65 = 198,219,620.70 : x
  2. Step 2: Convert to fraction form
    263,267,999.10/394,901,998.65 = 198,219,620.70/x
  3. Step 3: Cross multiply
    263,267,999.10x = 394,901,998.65 × 198,219,620.70
  4. Step 4: Simplify right side
    263,267,999.10x = 78,277,324,386,074,896
  5. Step 5: Solve for x
    x = 78,277,324,386,074,896/263,267,999.10
  6. Step 6: Final answer
    x = 297,329,431.05

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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.