Home / 13,458,614.80-20,187,922.20-12,419,352.40

Finding the Fourth Proportional to 13,458,614.80, 20,187,922.20 and 12,419,352.40

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Solution

The fourth proportional to 13,458,614.80, 20,187,922.20 and 12,419,352.40 is: 18,629,028.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,458,614.80 : 20,187,922.20 = 12,419,352.40 : x
  2. Step 2: Convert to fraction form
    13,458,614.80/20,187,922.20 = 12,419,352.40/x
  3. Step 3: Cross multiply
    13,458,614.80x = 20,187,922.20 × 12,419,352.40
  4. Step 4: Simplify right side
    13,458,614.80x = 250,720,920,025,583.28
  5. Step 5: Solve for x
    x = 250,720,920,025,583.28/13,458,614.80
  6. Step 6: Final answer
    x = 18,629,028.60

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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.