Home / 2,100,161.62-3,150,168.57-660,805.39

Finding the Fourth Proportional to 2,100,161.62, 3,150,168.57 and 660,805.39

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Solution

The fourth proportional to 2,100,161.62, 3,150,168.57 and 660,805.39 is: 991,184.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,100,161.62 : 3,150,168.57 = 660,805.39 : x
  2. Step 2: Convert to fraction form
    2,100,161.62/3,150,168.57 = 660,805.39/x
  3. Step 3: Cross multiply
    2,100,161.62x = 3,150,168.57 × 660,805.39
  4. Step 4: Simplify right side
    2,100,161.62x = 2,081,648,374,402.30
  5. Step 5: Solve for x
    x = 2,081,648,374,402.30/2,100,161.62
  6. Step 6: Final answer
    x = 991,184.85

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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.