Home / 8,253,211.10-12,380,363.40-2,187,858.20

Finding the Fourth Proportional to 8,253,211.10, 12,380,363.40 and 2,187,858.20

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Solution

The fourth proportional to 8,253,211.10, 12,380,363.40 and 2,187,858.20 is: 3,281,932.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,253,211.10 : 12,380,363.40 = 2,187,858.20 : x
  2. Step 2: Convert to fraction form
    8,253,211.10/12,380,363.40 = 2,187,858.20/x
  3. Step 3: Cross multiply
    8,253,211.10x = 12,380,363.40 × 2,187,858.20
  4. Step 4: Simplify right side
    8,253,211.10x = 27,086,479,583,669.88
  5. Step 5: Solve for x
    x = 27,086,479,583,669.88/8,253,211.10
  6. Step 6: Final answer
    x = 3,281,932.24

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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.