Home / 20,692,028.28-28,552,855.12-12,743,313.04

Finding the Fourth Proportional to 20,692,028.28, 28,552,855.12 and 12,743,313.04

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Solution

The fourth proportional to 20,692,028.28, 28,552,855.12 and 12,743,313.04 is: 17,584,451.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,692,028.28 : 28,552,855.12 = 12,743,313.04 : x
  2. Step 2: Convert to fraction form
    20,692,028.28/28,552,855.12 = 12,743,313.04/x
  3. Step 3: Cross multiply
    20,692,028.28x = 28,552,855.12 × 12,743,313.04
  4. Step 4: Simplify right side
    20,692,028.28x = 363,857,970,979,926.75
  5. Step 5: Solve for x
    x = 363,857,970,979,926.75/20,692,028.28
  6. Step 6: Final answer
    x = 17,584,451.66

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.