Home / 505,657,966.80-758,179,020.60-198,582,171.60

Finding the Fourth Proportional to 505,657,966.80, 758,179,020.60 and 198,582,171.60

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Solution

The fourth proportional to 505,657,966.80, 758,179,020.60 and 198,582,171.60 is: 297,752,327.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    505,657,966.80 : 758,179,020.60 = 198,582,171.60 : x
  2. Step 2: Convert to fraction form
    505,657,966.80/758,179,020.60 = 198,582,171.60/x
  3. Step 3: Cross multiply
    505,657,966.80x = 758,179,020.60 × 198,582,171.60
  4. Step 4: Simplify right side
    505,657,966.80x = 150,560,836,372,309,120
  5. Step 5: Solve for x
    x = 150,560,836,372,309,120/505,657,966.80
  6. Step 6: Final answer
    x = 297,752,327.18

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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.