Home / 18,682,912.90-28,036,179.15-11,006,542.90

Finding the Fourth Proportional to 18,682,912.90, 28,036,179.15 and 11,006,542.90

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Solution

The fourth proportional to 18,682,912.90, 28,036,179.15 and 11,006,542.90 is: 16,516,771.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,682,912.90 : 28,036,179.15 = 11,006,542.90 : x
  2. Step 2: Convert to fraction form
    18,682,912.90/28,036,179.15 = 11,006,542.90/x
  3. Step 3: Cross multiply
    18,682,912.90x = 28,036,179.15 × 11,006,542.90
  4. Step 4: Simplify right side
    18,682,912.90x = 308,581,408,566,560.50
  5. Step 5: Solve for x
    x = 308,581,408,566,560.50/18,682,912.90
  6. Step 6: Final answer
    x = 16,516,771.78

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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.