Home / 198,968,633,091.21-298,149,253,020.02-118,135,158,983.49

Finding the Fourth Proportional to 198,968,633,091.21, 298,149,253,020.02 and 118,135,158,983.49

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Solution

The fourth proportional to 198,968,633,091.21, 298,149,253,020.02 and 118,135,158,983.49 is: 177,022,422,374.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    198,968,633,091.21 : 298,149,253,020.02 = 118,135,158,983.49 : x
  2. Step 2: Convert to fraction form
    198,968,633,091.21/298,149,253,020.02 = 118,135,158,983.49/x
  3. Step 3: Cross multiply
    198,968,633,091.21x = 298,149,253,020.02 × 118,135,158,983.49
  4. Step 4: Simplify right side
    198,968,633,091.21x = 35,221,909,406,328,853,364,736
  5. Step 5: Solve for x
    x = 35,221,909,406,328,853,364,736/198,968,633,091.21
  6. Step 6: Final answer
    x = 177,022,422,374.40

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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.