Home / 389,021,974.74-582,597,822.78-222,520,846.05

Finding the Fourth Proportional to 389,021,974.74, 582,597,822.78 and 222,520,846.05

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Solution

The fourth proportional to 389,021,974.74, 582,597,822.78 and 222,520,846.05 is: 333,246,368.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    389,021,974.74 : 582,597,822.78 = 222,520,846.05 : x
  2. Step 2: Convert to fraction form
    389,021,974.74/582,597,822.78 = 222,520,846.05/x
  3. Step 3: Cross multiply
    389,021,974.74x = 582,597,822.78 × 222,520,846.05
  4. Step 4: Simplify right side
    389,021,974.74x = 129,640,160,431,893,568
  5. Step 5: Solve for x
    x = 129,640,160,431,893,568/389,021,974.74
  6. Step 6: Final answer
    x = 333,246,368.71

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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.