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Finding the Fourth Proportional to 393,325,121.60, 589,483,797.60 and 349,991,028.80

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Solution

The fourth proportional to 393,325,121.60, 589,483,797.60 and 349,991,028.80 is: 524,538,173.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    393,325,121.60 : 589,483,797.60 = 349,991,028.80 : x
  2. Step 2: Convert to fraction form
    393,325,121.60/589,483,797.60 = 349,991,028.80/x
  3. Step 3: Cross multiply
    393,325,121.60x = 589,483,797.60 × 349,991,028.80
  4. Step 4: Simplify right side
    393,325,121.60x = 206,314,040,782,954,976
  5. Step 5: Solve for x
    x = 206,314,040,782,954,976/393,325,121.60
  6. Step 6: Final answer
    x = 524,538,173.26

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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.