Home / 20,993,948.20-31,504,919.10-9,628,546.60

Finding the Fourth Proportional to 20,993,948.20, 31,504,919.10 and 9,628,546.60

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Solution

The fourth proportional to 20,993,948.20, 31,504,919.10 and 9,628,546.60 is: 14,449,239.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,993,948.20 : 31,504,919.10 = 9,628,546.60 : x
  2. Step 2: Convert to fraction form
    20,993,948.20/31,504,919.10 = 9,628,546.60/x
  3. Step 3: Cross multiply
    20,993,948.20x = 31,504,919.10 × 9,628,546.60
  4. Step 4: Simplify right side
    20,993,948.20x = 303,346,581,683,580.06
  5. Step 5: Solve for x
    x = 303,346,581,683,580.06/20,993,948.20
  6. Step 6: Final answer
    x = 14,449,239.31

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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.