Home / 305,466,468.74-421,632,554.88-199,635,804.52

Finding the Fourth Proportional to 305,466,468.74, 421,632,554.88 and 199,635,804.52

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Solution

The fourth proportional to 305,466,468.74, 421,632,554.88 and 199,635,804.52 is: 275,555,463.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    305,466,468.74 : 421,632,554.88 = 199,635,804.52 : x
  2. Step 2: Convert to fraction form
    305,466,468.74/421,632,554.88 = 199,635,804.52/x
  3. Step 3: Cross multiply
    305,466,468.74x = 421,632,554.88 × 199,635,804.52
  4. Step 4: Simplify right side
    305,466,468.74x = 84,172,954,305,291,856
  5. Step 5: Solve for x
    x = 84,172,954,305,291,856/305,466,468.74
  6. Step 6: Final answer
    x = 275,555,463.26

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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.