Home / 72,621,809.20-108,932,713.80-27,177,698.80

Finding the Fourth Proportional to 72,621,809.20, 108,932,713.80 and 27,177,698.80

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Solution

The fourth proportional to 72,621,809.20, 108,932,713.80 and 27,177,698.80 is: 40,766,548.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,621,809.20 : 108,932,713.80 = 27,177,698.80 : x
  2. Step 2: Convert to fraction form
    72,621,809.20/108,932,713.80 = 27,177,698.80/x
  3. Step 3: Cross multiply
    72,621,809.20x = 108,932,713.80 × 27,177,698.80
  4. Step 4: Simplify right side
    72,621,809.20x = 2,960,540,485,123,003.50
  5. Step 5: Solve for x
    x = 2,960,540,485,123,003.50/72,621,809.20
  6. Step 6: Final answer
    x = 40,766,548.20

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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.