Home / 8,579,191.78-12,868,776.80-2,189,444.28

Finding the Fourth Proportional to 8,579,191.78, 12,868,776.80 and 2,189,444.28

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Solution

The fourth proportional to 8,579,191.78, 12,868,776.80 and 2,189,444.28 is: 3,284,163.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,579,191.78 : 12,868,776.80 = 2,189,444.28 : x
  2. Step 2: Convert to fraction form
    8,579,191.78/12,868,776.80 = 2,189,444.28/x
  3. Step 3: Cross multiply
    8,579,191.78x = 12,868,776.80 × 2,189,444.28
  4. Step 4: Simplify right side
    8,579,191.78x = 28,175,469,755,356.70
  5. Step 5: Solve for x
    x = 28,175,469,755,356.70/8,579,191.78
  6. Step 6: Final answer
    x = 3,284,163.65

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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.