Home / 644,059,571.14-965,974,342.29-171,361,331.20

Finding the Fourth Proportional to 644,059,571.14, 965,974,342.29 and 171,361,331.20

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Solution

The fourth proportional to 644,059,571.14, 965,974,342.29 and 171,361,331.20 is: 257,011,395.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    644,059,571.14 : 965,974,342.29 = 171,361,331.20 : x
  2. Step 2: Convert to fraction form
    644,059,571.14/965,974,342.29 = 171,361,331.20/x
  3. Step 3: Cross multiply
    644,059,571.14x = 965,974,342.29 × 171,361,331.20
  4. Step 4: Simplify right side
    644,059,571.14x = 165,530,649,199,858,848
  5. Step 5: Solve for x
    x = 165,530,649,199,858,848/644,059,571.14
  6. Step 6: Final answer
    x = 257,011,395.56

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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.