Home / 198,940,512.80-298,410,769.20-118,119,879.20

Finding the Fourth Proportional to 198,940,512.80, 298,410,769.20 and 118,119,879.20

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Solution

The fourth proportional to 198,940,512.80, 298,410,769.20 and 118,119,879.20 is: 177,179,818.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    198,940,512.80 : 298,410,769.20 = 118,119,879.20 : x
  2. Step 2: Convert to fraction form
    198,940,512.80/298,410,769.20 = 118,119,879.20/x
  3. Step 3: Cross multiply
    198,940,512.80x = 298,410,769.20 × 118,119,879.20
  4. Step 4: Simplify right side
    198,940,512.80x = 35,248,244,009,883,080
  5. Step 5: Solve for x
    x = 35,248,244,009,883,080/198,940,512.80
  6. Step 6: Final answer
    x = 177,179,818.80

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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.