Home / 398,584,273.68-550,046,640.15-222,372,296.37

Finding the Fourth Proportional to 398,584,273.68, 550,046,640.15 and 222,372,296.37

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Solution

The fourth proportional to 398,584,273.68, 550,046,640.15 and 222,372,296.37 is: 306,873,960.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    398,584,273.68 : 550,046,640.15 = 222,372,296.37 : x
  2. Step 2: Convert to fraction form
    398,584,273.68/550,046,640.15 = 222,372,296.37/x
  3. Step 3: Cross multiply
    398,584,273.68x = 550,046,640.15 × 222,372,296.37
  4. Step 4: Simplify right side
    398,584,273.68x = 122,315,134,480,758,544
  5. Step 5: Solve for x
    x = 122,315,134,480,758,544/398,584,273.68
  6. Step 6: Final answer
    x = 306,873,960.06

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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.