Home / 379,642,083.11-523,906,843.75-212,381,137.54

Finding the Fourth Proportional to 379,642,083.11, 523,906,843.75 and 212,381,137.54

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Solution

The fourth proportional to 379,642,083.11, 523,906,843.75 and 212,381,137.54 is: 293,086,400.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    379,642,083.11 : 523,906,843.75 = 212,381,137.54 : x
  2. Step 2: Convert to fraction form
    379,642,083.11/523,906,843.75 = 212,381,137.54/x
  3. Step 3: Cross multiply
    379,642,083.11x = 523,906,843.75 × 212,381,137.54
  4. Step 4: Simplify right side
    379,642,083.11x = 111,267,931,440,600,192
  5. Step 5: Solve for x
    x = 111,267,931,440,600,192/379,642,083.11
  6. Step 6: Final answer
    x = 293,086,400.04

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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.