Home / 218,313,979.20-327,470,968.80-109,155,997.80

Finding the Fourth Proportional to 218,313,979.20, 327,470,968.80 and 109,155,997.80

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Solution

The fourth proportional to 218,313,979.20, 327,470,968.80 and 109,155,997.80 is: 163,733,996.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    218,313,979.20 : 327,470,968.80 = 109,155,997.80 : x
  2. Step 2: Convert to fraction form
    218,313,979.20/327,470,968.80 = 109,155,997.80/x
  3. Step 3: Cross multiply
    218,313,979.20x = 327,470,968.80 × 109,155,997.80
  4. Step 4: Simplify right side
    218,313,979.20x = 35,745,420,349,896,668
  5. Step 5: Solve for x
    x = 35,745,420,349,896,668/218,313,979.20
  6. Step 6: Final answer
    x = 163,733,996.70

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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.