Home / 12,419,430.60-18,629,145.90-9,396,121.80

Finding the Fourth Proportional to 12,419,430.60, 18,629,145.90 and 9,396,121.80

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Solution

The fourth proportional to 12,419,430.60, 18,629,145.90 and 9,396,121.80 is: 14,094,182.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,419,430.60 : 18,629,145.90 = 9,396,121.80 : x
  2. Step 2: Convert to fraction form
    12,419,430.60/18,629,145.90 = 9,396,121.80/x
  3. Step 3: Cross multiply
    12,419,430.60x = 18,629,145.90 × 9,396,121.80
  4. Step 4: Simplify right side
    12,419,430.60x = 175,041,723,906,370.62
  5. Step 5: Solve for x
    x = 175,041,723,906,370.62/12,419,430.60
  6. Step 6: Final answer
    x = 14,094,182.70

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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.