Home / 399,172,221.16-550,859,928.42-222,967,634.92

Finding the Fourth Proportional to 399,172,221.16, 550,859,928.42 and 222,967,634.92

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Solution

The fourth proportional to 399,172,221.16, 550,859,928.42 and 222,967,634.92 is: 307,696,600.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    399,172,221.16 : 550,859,928.42 = 222,967,634.92 : x
  2. Step 2: Convert to fraction form
    399,172,221.16/550,859,928.42 = 222,967,634.92/x
  3. Step 3: Cross multiply
    399,172,221.16x = 550,859,928.42 × 222,967,634.92
  4. Step 4: Simplify right side
    399,172,221.16x = 122,823,935,412,007,872
  5. Step 5: Solve for x
    x = 122,823,935,412,007,872/399,172,221.16
  6. Step 6: Final answer
    x = 307,696,600.37

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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.