Home / 3,990,980.43-5,507,553.33-2,180,144.43

Finding the Fourth Proportional to 3,990,980.43, 5,507,553.33 and 2,180,144.43

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Solution

The fourth proportional to 3,990,980.43, 5,507,553.33 and 2,180,144.43 is: 3,008,599.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,990,980.43 : 5,507,553.33 = 2,180,144.43 : x
  2. Step 2: Convert to fraction form
    3,990,980.43/5,507,553.33 = 2,180,144.43/x
  3. Step 3: Cross multiply
    3,990,980.43x = 5,507,553.33 × 2,180,144.43
  4. Step 4: Simplify right side
    3,990,980.43x = 12,007,261,715,327.45
  5. Step 5: Solve for x
    x = 12,007,261,715,327.45/3,990,980.43
  6. Step 6: Final answer
    x = 3,008,599.50

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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.