Home / 20,215,816.80-30,334,222.80-8,857,413.60

Finding the Fourth Proportional to 20,215,816.80, 30,334,222.80 and 8,857,413.60

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Solution

The fourth proportional to 20,215,816.80, 30,334,222.80 and 8,857,413.60 is: 13,290,719.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,215,816.80 : 30,334,222.80 = 8,857,413.60 : x
  2. Step 2: Convert to fraction form
    20,215,816.80/30,334,222.80 = 8,857,413.60/x
  3. Step 3: Cross multiply
    20,215,816.80x = 30,334,222.80 × 8,857,413.60
  4. Step 4: Simplify right side
    20,215,816.80x = 268,682,757,574,150.06
  5. Step 5: Solve for x
    x = 268,682,757,574,150.06/20,215,816.80
  6. Step 6: Final answer
    x = 13,290,719.85

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1.5x scale

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.