Home / 2,100,105.48-3,150,121.77-680,164.14

Finding the Fourth Proportional to 2,100,105.48, 3,150,121.77 and 680,164.14

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Solution

The fourth proportional to 2,100,105.48, 3,150,121.77 and 680,164.14 is: 1,020,234.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,100,105.48 : 3,150,121.77 = 680,164.14 : x
  2. Step 2: Convert to fraction form
    2,100,105.48/3,150,121.77 = 680,164.14/x
  3. Step 3: Cross multiply
    2,100,105.48x = 3,150,121.77 × 680,164.14
  4. Step 4: Simplify right side
    2,100,105.48x = 2,142,599,864,587.33
  5. Step 5: Solve for x
    x = 2,142,599,864,587.33/2,100,105.48
  6. Step 6: Final answer
    x = 1,020,234.40

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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.