Home / 440,122,407.20-660,183,610.80-210,539,895.20

Finding the Fourth Proportional to 440,122,407.20, 660,183,610.80 and 210,539,895.20

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Solution

The fourth proportional to 440,122,407.20, 660,183,610.80 and 210,539,895.20 is: 315,809,842.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    440,122,407.20 : 660,183,610.80 = 210,539,895.20 : x
  2. Step 2: Convert to fraction form
    440,122,407.20/660,183,610.80 = 210,539,895.20/x
  3. Step 3: Cross multiply
    440,122,407.20x = 660,183,610.80 × 210,539,895.20
  4. Step 4: Simplify right side
    440,122,407.20x = 138,994,988,230,589,568
  5. Step 5: Solve for x
    x = 138,994,988,230,589,568/440,122,407.20
  6. Step 6: Final answer
    x = 315,809,842.80

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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.