Home / 20,993,973.20-31,504,956.60-9,628,571.60

Finding the Fourth Proportional to 20,993,973.20, 31,504,956.60 and 9,628,571.60

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Solution

The fourth proportional to 20,993,973.20, 31,504,956.60 and 9,628,571.60 is: 14,449,276.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,993,973.20 : 31,504,956.60 = 9,628,571.60 : x
  2. Step 2: Convert to fraction form
    20,993,973.20/31,504,956.60 = 9,628,571.60/x
  3. Step 3: Cross multiply
    20,993,973.20x = 31,504,956.60 × 9,628,571.60
  4. Step 4: Simplify right side
    20,993,973.20x = 303,347,730,377,992.56
  5. Step 5: Solve for x
    x = 303,347,730,377,992.56/20,993,973.20
  6. Step 6: Final answer
    x = 14,449,276.82

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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.