Home / 18,914,657.20-28,375,672.20-8,131,937.20

Finding the Fourth Proportional to 18,914,657.20, 28,375,672.20 and 8,131,937.20

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Solution

The fourth proportional to 18,914,657.20, 28,375,672.20 and 8,131,937.20 is: 12,199,490.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,914,657.20 : 28,375,672.20 = 8,131,937.20 : x
  2. Step 2: Convert to fraction form
    18,914,657.20/28,375,672.20 = 8,131,937.20/x
  3. Step 3: Cross multiply
    18,914,657.20x = 28,375,672.20 × 8,131,937.20
  4. Step 4: Simplify right side
    18,914,657.20x = 230,749,184,338,185.84
  5. Step 5: Solve for x
    x = 230,749,184,338,185.84/18,914,657.20
  6. Step 6: Final answer
    x = 12,199,490.69

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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.