Home / 220,170,190.80-330,255,286.20-66,816,001.20

Finding the Fourth Proportional to 220,170,190.80, 330,255,286.20 and 66,816,001.20

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Solution

The fourth proportional to 220,170,190.80, 330,255,286.20 and 66,816,001.20 is: 100,224,001.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    220,170,190.80 : 330,255,286.20 = 66,816,001.20 : x
  2. Step 2: Convert to fraction form
    220,170,190.80/330,255,286.20 = 66,816,001.20/x
  3. Step 3: Cross multiply
    220,170,190.80x = 330,255,286.20 × 66,816,001.20
  4. Step 4: Simplify right side
    220,170,190.80x = 22,066,337,599,045,544
  5. Step 5: Solve for x
    x = 22,066,337,599,045,544/220,170,190.80
  6. Step 6: Final answer
    x = 100,224,001.80

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1.5x scale

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.