Home / 13,906,413.60-20,859,620.40-8,223,712.80

Finding the Fourth Proportional to 13,906,413.60, 20,859,620.40 and 8,223,712.80

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Solution

The fourth proportional to 13,906,413.60, 20,859,620.40 and 8,223,712.80 is: 12,335,569.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,906,413.60 : 20,859,620.40 = 8,223,712.80 : x
  2. Step 2: Convert to fraction form
    13,906,413.60/20,859,620.40 = 8,223,712.80/x
  3. Step 3: Cross multiply
    13,906,413.60x = 20,859,620.40 × 8,223,712.80
  4. Step 4: Simplify right side
    13,906,413.60x = 171,543,527,286,621.09
  5. Step 5: Solve for x
    x = 171,543,527,286,621.09/13,906,413.60
  6. Step 6: Final answer
    x = 12,335,569.20

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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.