Home / 639,324,850.92-882,268,297.38-345,969,421.80

Finding the Fourth Proportional to 639,324,850.92, 882,268,297.38 and 345,969,421.80

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Solution

The fourth proportional to 639,324,850.92, 882,268,297.38 and 345,969,421.80 is: 477,437,803.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    639,324,850.92 : 882,268,297.38 = 345,969,421.80 : x
  2. Step 2: Convert to fraction form
    639,324,850.92/882,268,297.38 = 345,969,421.80/x
  3. Step 3: Cross multiply
    639,324,850.92x = 882,268,297.38 × 345,969,421.80
  4. Step 4: Simplify right side
    639,324,850.92x = 305,237,852,717,029,056
  5. Step 5: Solve for x
    x = 305,237,852,717,029,056/639,324,850.92
  6. Step 6: Final answer
    x = 477,437,803.77

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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.