Home / 161,587,613.12-222,991,155.60-91,972,993.28

Finding the Fourth Proportional to 161,587,613.12, 222,991,155.60 and 91,972,993.28

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Solution

The fourth proportional to 161,587,613.12, 222,991,155.60 and 91,972,993.28 is: 126,922,872.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    161,587,613.12 : 222,991,155.60 = 91,972,993.28 : x
  2. Step 2: Convert to fraction form
    161,587,613.12/222,991,155.60 = 91,972,993.28/x
  3. Step 3: Cross multiply
    161,587,613.12x = 222,991,155.60 × 91,972,993.28
  4. Step 4: Simplify right side
    161,587,613.12x = 20,509,164,055,498,236
  5. Step 5: Solve for x
    x = 20,509,164,055,498,236/161,587,613.12
  6. Step 6: Final answer
    x = 126,922,872.73

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.