Home / 13,542,608.45-20,319,611.05-8,429,314.97

Finding the Fourth Proportional to 13,542,608.45, 20,319,611.05 and 8,429,314.97

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Solution

The fourth proportional to 13,542,608.45, 20,319,611.05 and 8,429,314.97 is: 12,647,519.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,542,608.45 : 20,319,611.05 = 8,429,314.97 : x
  2. Step 2: Convert to fraction form
    13,542,608.45/20,319,611.05 = 8,429,314.97/x
  3. Step 3: Cross multiply
    13,542,608.45x = 20,319,611.05 × 8,429,314.97
  4. Step 4: Simplify right side
    13,542,608.45x = 171,280,401,507,965.38
  5. Step 5: Solve for x
    x = 171,280,401,507,965.38/13,542,608.45
  6. Step 6: Final answer
    x = 12,647,519.29

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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.