Home / 20,206,291.20-30,309,436.80-13,828,999.20

Finding the Fourth Proportional to 20,206,291.20, 30,309,436.80 and 13,828,999.20

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Solution

The fourth proportional to 20,206,291.20, 30,309,436.80 and 13,828,999.20 is: 20,743,498.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,206,291.20 : 30,309,436.80 = 13,828,999.20 : x
  2. Step 2: Convert to fraction form
    20,206,291.20/30,309,436.80 = 13,828,999.20/x
  3. Step 3: Cross multiply
    20,206,291.20x = 30,309,436.80 × 13,828,999.20
  4. Step 4: Simplify right side
    20,206,291.20x = 419,149,177,259,650.56
  5. Step 5: Solve for x
    x = 419,149,177,259,650.56/20,206,291.20
  6. Step 6: Final answer
    x = 20,743,498.80

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1.5x scale

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.