Home / 159,503,163.35-220,108,923.56-87,978,879.29

Finding the Fourth Proportional to 159,503,163.35, 220,108,923.56 and 87,978,879.29

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Solution

The fourth proportional to 159,503,163.35, 220,108,923.56 and 87,978,879.29 is: 121,407,851.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    159,503,163.35 : 220,108,923.56 = 87,978,879.29 : x
  2. Step 2: Convert to fraction form
    159,503,163.35/220,108,923.56 = 87,978,879.29/x
  3. Step 3: Cross multiply
    159,503,163.35x = 220,108,923.56 × 87,978,879.29
  4. Step 4: Simplify right side
    159,503,163.35x = 19,364,936,414,996,636
  5. Step 5: Solve for x
    x = 19,364,936,414,996,636/159,503,163.35
  6. Step 6: Final answer
    x = 121,407,851.79

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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.