Home / 20,745,906.20-31,118,859.30-11,179,968.20

Finding the Fourth Proportional to 20,745,906.20, 31,118,859.30 and 11,179,968.20

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Solution

The fourth proportional to 20,745,906.20, 31,118,859.30 and 11,179,968.20 is: 16,769,952.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,745,906.20 : 31,118,859.30 = 11,179,968.20 : x
  2. Step 2: Convert to fraction form
    20,745,906.20/31,118,859.30 = 11,179,968.20/x
  3. Step 3: Cross multiply
    20,745,906.20x = 31,118,859.30 × 11,179,968.20
  4. Step 4: Simplify right side
    20,745,906.20x = 347,907,857,394,274.25
  5. Step 5: Solve for x
    x = 347,907,857,394,274.25/20,745,906.20
  6. Step 6: Final answer
    x = 16,769,952.30

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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.