Home / 6,517,949.16-8,990,678.40-3,866,919.72

Finding the Fourth Proportional to 6,517,949.16, 8,990,678.40 and 3,866,919.72

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Solution

The fourth proportional to 6,517,949.16, 8,990,678.40 and 3,866,919.72 is: 5,333,921.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,517,949.16 : 8,990,678.40 = 3,866,919.72 : x
  2. Step 2: Convert to fraction form
    6,517,949.16/8,990,678.40 = 3,866,919.72/x
  3. Step 3: Cross multiply
    6,517,949.16x = 8,990,678.40 × 3,866,919.72
  4. Step 4: Simplify right side
    6,517,949.16x = 34,766,231,601,138.05
  5. Step 5: Solve for x
    x = 34,766,231,601,138.05/6,517,949.16
  6. Step 6: Final answer
    x = 5,333,921.87

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.