Home / 392,476,635.84-541,629,310.69-216,275,981.43

Finding the Fourth Proportional to 392,476,635.84, 541,629,310.69 and 216,275,981.43

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Solution

The fourth proportional to 392,476,635.84, 541,629,310.69 and 216,275,981.43 is: 298,467,220.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    392,476,635.84 : 541,629,310.69 = 216,275,981.43 : x
  2. Step 2: Convert to fraction form
    392,476,635.84/541,629,310.69 = 216,275,981.43/x
  3. Step 3: Cross multiply
    392,476,635.84x = 541,629,310.69 × 216,275,981.43
  4. Step 4: Simplify right side
    392,476,635.84x = 117,141,410,737,485,312
  5. Step 5: Solve for x
    x = 117,141,410,737,485,312/392,476,635.84
  6. Step 6: Final answer
    x = 298,467,220.83

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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.