Home / 20,115,137.03-30,192,191.71-19,022,730.53

Finding the Fourth Proportional to 20,115,137.03, 30,192,191.71 and 19,022,730.53

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Solution

The fourth proportional to 20,115,137.03, 30,192,191.71 and 19,022,730.53 is: 28,552,523.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,115,137.03 : 30,192,191.71 = 19,022,730.53 : x
  2. Step 2: Convert to fraction form
    20,115,137.03/30,192,191.71 = 19,022,730.53/x
  3. Step 3: Cross multiply
    20,115,137.03x = 30,192,191.71 × 19,022,730.53
  4. Step 4: Simplify right side
    20,115,137.03x = 574,337,926,810,912.12
  5. Step 5: Solve for x
    x = 574,337,926,810,912.12/20,115,137.03
  6. Step 6: Final answer
    x = 28,552,523.71

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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.