Home / 20,486,540.80-30,729,811.20-5,340,472.30

Finding the Fourth Proportional to 20,486,540.80, 30,729,811.20 and 5,340,472.30

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Solution

The fourth proportional to 20,486,540.80, 30,729,811.20 and 5,340,472.30 is: 8,010,708.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,486,540.80 : 30,729,811.20 = 5,340,472.30 : x
  2. Step 2: Convert to fraction form
    20,486,540.80/30,729,811.20 = 5,340,472.30/x
  3. Step 3: Cross multiply
    20,486,540.80x = 30,729,811.20 × 5,340,472.30
  4. Step 4: Simplify right side
    20,486,540.80x = 164,111,705,497,829.75
  5. Step 5: Solve for x
    x = 164,111,705,497,829.75/20,486,540.80
  6. Step 6: Final answer
    x = 8,010,708.45

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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.