Home / 2,778,141.66-4,155,844.11-2,099,175.90

Finding the Fourth Proportional to 2,778,141.66, 4,155,844.11 and 2,099,175.90

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Solution

The fourth proportional to 2,778,141.66, 4,155,844.11 and 2,099,175.90 is: 3,140,173.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,778,141.66 : 4,155,844.11 = 2,099,175.90 : x
  2. Step 2: Convert to fraction form
    2,778,141.66/4,155,844.11 = 2,099,175.90/x
  3. Step 3: Cross multiply
    2,778,141.66x = 4,155,844.11 × 2,099,175.90
  4. Step 4: Simplify right side
    2,778,141.66x = 8,723,847,799,868.95
  5. Step 5: Solve for x
    x = 8,723,847,799,868.95/2,778,141.66
  6. Step 6: Final answer
    x = 3,140,173.85

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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.