Home / 279,030,638.80-418,545,958.20-218,498,107.60

Finding the Fourth Proportional to 279,030,638.80, 418,545,958.20 and 218,498,107.60

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Solution

The fourth proportional to 279,030,638.80, 418,545,958.20 and 218,498,107.60 is: 327,747,161.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    279,030,638.80 : 418,545,958.20 = 218,498,107.60 : x
  2. Step 2: Convert to fraction form
    279,030,638.80/418,545,958.20 = 218,498,107.60/x
  3. Step 3: Cross multiply
    279,030,638.80x = 418,545,958.20 × 218,498,107.60
  4. Step 4: Simplify right side
    279,030,638.80x = 91,451,499,810,328,704
  5. Step 5: Solve for x
    x = 91,451,499,810,328,704/279,030,638.80
  6. Step 6: Final answer
    x = 327,747,161.40

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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.