Home / 305,466,469.74-421,632,556.26-199,635,805.52

Finding the Fourth Proportional to 305,466,469.74, 421,632,556.26 and 199,635,805.52

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Solution

The fourth proportional to 305,466,469.74, 421,632,556.26 and 199,635,805.52 is: 275,555,464.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    305,466,469.74 : 421,632,556.26 = 199,635,805.52 : x
  2. Step 2: Convert to fraction form
    305,466,469.74/421,632,556.26 = 199,635,805.52/x
  3. Step 3: Cross multiply
    305,466,469.74x = 421,632,556.26 × 199,635,805.52
  4. Step 4: Simplify right side
    305,466,469.74x = 84,172,955,002,421,824
  5. Step 5: Solve for x
    x = 84,172,955,002,421,824/305,466,469.74
  6. Step 6: Final answer
    x = 275,555,464.64

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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.