Home / 394,815,786,751.42-544,845,785,716.95-225,843,057,919.41

Finding the Fourth Proportional to 394,815,786,751.42, 544,845,785,716.95 and 225,843,057,919.41

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Solution

The fourth proportional to 394,815,786,751.42, 544,845,785,716.95 and 225,843,057,919.41 is: 311,663,419,928.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    394,815,786,751.42 : 544,845,785,716.95 = 225,843,057,919.41 : x
  2. Step 2: Convert to fraction form
    394,815,786,751.42/544,845,785,716.95 = 225,843,057,919.41/x
  3. Step 3: Cross multiply
    394,815,786,751.42x = 544,845,785,716.95 × 225,843,057,919.41
  4. Step 4: Simplify right side
    394,815,786,751.42x = 123,049,638,340,819,601,588,224
  5. Step 5: Solve for x
    x = 123,049,638,340,819,601,588,224/394,815,786,751.42
  6. Step 6: Final answer
    x = 311,663,419,928.78

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.