Home / 6,121,570.10-9,171,857.55-3,990,557.30

Finding the Fourth Proportional to 6,121,570.10, 9,171,857.55 and 3,990,557.30

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Solution

The fourth proportional to 6,121,570.10, 9,171,857.55 and 3,990,557.30 is: 5,978,992.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,121,570.10 : 9,171,857.55 = 3,990,557.30 : x
  2. Step 2: Convert to fraction form
    6,121,570.10/9,171,857.55 = 3,990,557.30/x
  3. Step 3: Cross multiply
    6,121,570.10x = 9,171,857.55 × 3,990,557.30
  4. Step 4: Simplify right side
    6,121,570.10x = 36,600,823,100,712.62
  5. Step 5: Solve for x
    x = 36,600,823,100,712.62/6,121,570.10
  6. Step 6: Final answer
    x = 5,978,992.73

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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.