Home / 218,313,980.20-327,470,970.30-109,155,998.80

Finding the Fourth Proportional to 218,313,980.20, 327,470,970.30 and 109,155,998.80

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Solution

The fourth proportional to 218,313,980.20, 327,470,970.30 and 109,155,998.80 is: 163,733,998.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    218,313,980.20 : 327,470,970.30 = 109,155,998.80 : x
  2. Step 2: Convert to fraction form
    218,313,980.20/327,470,970.30 = 109,155,998.80/x
  3. Step 3: Cross multiply
    218,313,980.20x = 327,470,970.30 × 109,155,998.80
  4. Step 4: Simplify right side
    218,313,980.20x = 35,745,420,841,101,636
  5. Step 5: Solve for x
    x = 35,745,420,841,101,636/218,313,980.20
  6. Step 6: Final answer
    x = 163,733,998.20

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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.