Home / 215,511,376.80-323,267,065.20-198,883,178.40

Finding the Fourth Proportional to 215,511,376.80, 323,267,065.20 and 198,883,178.40

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Solution

The fourth proportional to 215,511,376.80, 323,267,065.20 and 198,883,178.40 is: 298,324,767.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    215,511,376.80 : 323,267,065.20 = 198,883,178.40 : x
  2. Step 2: Convert to fraction form
    215,511,376.80/323,267,065.20 = 198,883,178.40/x
  3. Step 3: Cross multiply
    215,511,376.80x = 323,267,065.20 × 198,883,178.40
  4. Step 4: Simplify right side
    215,511,376.80x = 64,292,381,399,016,032
  5. Step 5: Solve for x
    x = 64,292,381,399,016,032/215,511,376.80
  6. Step 6: Final answer
    x = 298,324,767.60

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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.