Home / 438,859,537.54-658,188,571.94-261,646,822.42

Finding the Fourth Proportional to 438,859,537.54, 658,188,571.94 and 261,646,822.42

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Solution

The fourth proportional to 438,859,537.54, 658,188,571.94 and 261,646,822.42 is: 392,410,176.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    438,859,537.54 : 658,188,571.94 = 261,646,822.42 : x
  2. Step 2: Convert to fraction form
    438,859,537.54/658,188,571.94 = 261,646,822.42/x
  3. Step 3: Cross multiply
    438,859,537.54x = 658,188,571.94 × 261,646,822.42
  4. Step 4: Simplify right side
    438,859,537.54x = 172,212,948,401,258,592
  5. Step 5: Solve for x
    x = 172,212,948,401,258,592/438,859,537.54
  6. Step 6: Final answer
    x = 392,410,176.08

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.