Home / 440,122,206.80-660,183,310.20-210,539,694.80

Finding the Fourth Proportional to 440,122,206.80, 660,183,310.20 and 210,539,694.80

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Solution

The fourth proportional to 440,122,206.80, 660,183,310.20 and 210,539,694.80 is: 315,809,542.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    440,122,206.80 : 660,183,310.20 = 210,539,694.80 : x
  2. Step 2: Convert to fraction form
    440,122,206.80/660,183,310.20 = 210,539,694.80/x
  3. Step 3: Cross multiply
    440,122,206.80x = 660,183,310.20 × 210,539,694.80
  4. Step 4: Simplify right side
    440,122,206.80x = 138,994,792,641,561,744
  5. Step 5: Solve for x
    x = 138,994,792,641,561,744/440,122,206.80
  6. Step 6: Final answer
    x = 315,809,542.20

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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.