Home / 20,993,976.20-31,504,961.10-9,628,574.60

Finding the Fourth Proportional to 20,993,976.20, 31,504,961.10 and 9,628,574.60

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Solution

The fourth proportional to 20,993,976.20, 31,504,961.10 and 9,628,574.60 is: 14,449,281.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,993,976.20 : 31,504,961.10 = 9,628,574.60 : x
  2. Step 2: Convert to fraction form
    20,993,976.20/31,504,961.10 = 9,628,574.60/x
  3. Step 3: Cross multiply
    20,993,976.20x = 31,504,961.10 × 9,628,574.60
  4. Step 4: Simplify right side
    20,993,976.20x = 303,347,868,221,448.06
  5. Step 5: Solve for x
    x = 303,347,868,221,448.06/20,993,976.20
  6. Step 6: Final answer
    x = 14,449,281.32

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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.