Home / 438,859,534.53-658,188,567.44-261,646,819.43

Finding the Fourth Proportional to 438,859,534.53, 658,188,567.44 and 261,646,819.43

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Solution

The fourth proportional to 438,859,534.53, 658,188,567.44 and 261,646,819.43 is: 392,410,171.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    438,859,534.53 : 658,188,567.44 = 261,646,819.43 : x
  2. Step 2: Convert to fraction form
    438,859,534.53/658,188,567.44 = 261,646,819.43/x
  3. Step 3: Cross multiply
    438,859,534.53x = 658,188,567.44 × 261,646,819.43
  4. Step 4: Simplify right side
    438,859,534.53x = 172,212,945,251,264,864
  5. Step 5: Solve for x
    x = 172,212,945,251,264,864/438,859,534.53
  6. Step 6: Final answer
    x = 392,410,171.60

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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.