Home / 1,489,106,586.60-2,233,659,879.90-398,589,654.60

Finding the Fourth Proportional to 1,489,106,586.60, 2,233,659,879.90 and 398,589,654.60

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Solution

The fourth proportional to 1,489,106,586.60, 2,233,659,879.90 and 398,589,654.60 is: 597,884,481.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,489,106,586.60 : 2,233,659,879.90 = 398,589,654.60 : x
  2. Step 2: Convert to fraction form
    1,489,106,586.60/2,233,659,879.90 = 398,589,654.60/x
  3. Step 3: Cross multiply
    1,489,106,586.60x = 2,233,659,879.90 × 398,589,654.60
  4. Step 4: Simplify right side
    1,489,106,586.60x = 890,313,720,023,218,560
  5. Step 5: Solve for x
    x = 890,313,720,023,218,560/1,489,106,586.60
  6. Step 6: Final answer
    x = 597,884,481.90

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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.