Home / 12,143,922.40-18,204,219.60-7,021,093.60

Finding the Fourth Proportional to 12,143,922.40, 18,204,219.60 and 7,021,093.60

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Solution

The fourth proportional to 12,143,922.40, 18,204,219.60 and 7,021,093.60 is: 10,524,896.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,143,922.40 : 18,204,219.60 = 7,021,093.60 : x
  2. Step 2: Convert to fraction form
    12,143,922.40/18,204,219.60 = 7,021,093.60/x
  3. Step 3: Cross multiply
    12,143,922.40x = 18,204,219.60 × 7,021,093.60
  4. Step 4: Simplify right side
    12,143,922.40x = 127,813,529,726,554.56
  5. Step 5: Solve for x
    x = 127,813,529,726,554.56/12,143,922.40
  6. Step 6: Final answer
    x = 10,524,896.78

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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.