Home / 408,067,165.98-612,187,698.42-131,734,084.86

Finding the Fourth Proportional to 408,067,165.98, 612,187,698.42 and 131,734,084.86

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Solution

The fourth proportional to 408,067,165.98, 612,187,698.42 and 131,734,084.86 is: 197,629,196.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    408,067,165.98 : 612,187,698.42 = 131,734,084.86 : x
  2. Step 2: Convert to fraction form
    408,067,165.98/612,187,698.42 = 131,734,084.86/x
  3. Step 3: Cross multiply
    408,067,165.98x = 612,187,698.42 × 131,734,084.86
  4. Step 4: Simplify right side
    408,067,165.98x = 80,645,986,213,908,368
  5. Step 5: Solve for x
    x = 80,645,986,213,908,368/408,067,165.98
  6. Step 6: Final answer
    x = 197,629,196.70

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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.