Home / 393,398,608.20-590,097,912.30-189,325,264.20

Finding the Fourth Proportional to 393,398,608.20, 590,097,912.30 and 189,325,264.20

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Solution

The fourth proportional to 393,398,608.20, 590,097,912.30 and 189,325,264.20 is: 283,987,896.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    393,398,608.20 : 590,097,912.30 = 189,325,264.20 : x
  2. Step 2: Convert to fraction form
    393,398,608.20/590,097,912.30 = 189,325,264.20/x
  3. Step 3: Cross multiply
    393,398,608.20x = 590,097,912.30 × 189,325,264.20
  4. Step 4: Simplify right side
    393,398,608.20x = 111,720,443,150,065,920
  5. Step 5: Solve for x
    x = 111,720,443,150,065,920/393,398,608.20
  6. Step 6: Final answer
    x = 283,987,896.30

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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.