Home / 12,219,439.23-18,329,158.89-3,121,556.85

Finding the Fourth Proportional to 12,219,439.23, 18,329,158.89 and 3,121,556.85

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Solution

The fourth proportional to 12,219,439.23, 18,329,158.89 and 3,121,556.85 is: 4,682,335.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,219,439.23 : 18,329,158.89 = 3,121,556.85 : x
  2. Step 2: Convert to fraction form
    12,219,439.23/18,329,158.89 = 3,121,556.85/x
  3. Step 3: Cross multiply
    12,219,439.23x = 18,329,158.89 × 3,121,556.85
  4. Step 4: Simplify right side
    12,219,439.23x = 57,215,511,487,817.90
  5. Step 5: Solve for x
    x = 57,215,511,487,817.90/12,219,439.23
  6. Step 6: Final answer
    x = 4,682,335.29

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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.