Home / 20,993,947.20-31,504,917.60-9,628,545.60

Finding the Fourth Proportional to 20,993,947.20, 31,504,917.60 and 9,628,545.60

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Solution

The fourth proportional to 20,993,947.20, 31,504,917.60 and 9,628,545.60 is: 14,449,237.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,993,947.20 : 31,504,917.60 = 9,628,545.60 : x
  2. Step 2: Convert to fraction form
    20,993,947.20/31,504,917.60 = 9,628,545.60/x
  3. Step 3: Cross multiply
    20,993,947.20x = 31,504,917.60 × 9,628,545.60
  4. Step 4: Simplify right side
    20,993,947.20x = 303,346,535,735,842.56
  5. Step 5: Solve for x
    x = 303,346,535,735,842.56/20,993,947.20
  6. Step 6: Final answer
    x = 14,449,237.81

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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.