Home / 440,122,418.20-660,183,627.30-210,539,906.20

Finding the Fourth Proportional to 440,122,418.20, 660,183,627.30 and 210,539,906.20

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Solution

The fourth proportional to 440,122,418.20, 660,183,627.30 and 210,539,906.20 is: 315,809,859.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    440,122,418.20 : 660,183,627.30 = 210,539,906.20 : x
  2. Step 2: Convert to fraction form
    440,122,418.20/660,183,627.30 = 210,539,906.20/x
  3. Step 3: Cross multiply
    440,122,418.20x = 660,183,627.30 × 210,539,906.20
  4. Step 4: Simplify right side
    440,122,418.20x = 138,994,998,966,517,744
  5. Step 5: Solve for x
    x = 138,994,998,966,517,744/440,122,418.20
  6. Step 6: Final answer
    x = 315,809,859.30

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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.