Home / 2,188,220.42-3,019,621.33-1,221,413.04

Finding the Fourth Proportional to 2,188,220.42, 3,019,621.33 and 1,221,413.04

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Solution

The fourth proportional to 2,188,220.42, 3,019,621.33 and 1,221,413.04 is: 1,685,481.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,188,220.42 : 3,019,621.33 = 1,221,413.04 : x
  2. Step 2: Convert to fraction form
    2,188,220.42/3,019,621.33 = 1,221,413.04/x
  3. Step 3: Cross multiply
    2,188,220.42x = 3,019,621.33 × 1,221,413.04
  4. Step 4: Simplify right side
    2,188,220.42x = 3,688,204,847,118.97
  5. Step 5: Solve for x
    x = 3,688,204,847,118.97/2,188,220.42
  6. Step 6: Final answer
    x = 1,685,481.41

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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.