Home / 215,511,388.80-323,267,083.20-198,883,190.40

Finding the Fourth Proportional to 215,511,388.80, 323,267,083.20 and 198,883,190.40

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Solution

The fourth proportional to 215,511,388.80, 323,267,083.20 and 198,883,190.40 is: 298,324,785.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    215,511,388.80 : 323,267,083.20 = 198,883,190.40 : x
  2. Step 2: Convert to fraction form
    215,511,388.80/323,267,083.20 = 198,883,190.40/x
  3. Step 3: Cross multiply
    215,511,388.80x = 323,267,083.20 × 198,883,190.40
  4. Step 4: Simplify right side
    215,511,388.80x = 64,292,388,858,118,240
  5. Step 5: Solve for x
    x = 64,292,388,858,118,240/215,511,388.80
  6. Step 6: Final answer
    x = 298,324,785.60

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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.