Home / 87,951,110.28-121,322,105.64-54,853,898.82

Finding the Fourth Proportional to 87,951,110.28, 121,322,105.64 and 54,853,898.82

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Solution

The fourth proportional to 87,951,110.28, 121,322,105.64 and 54,853,898.82 is: 75,666,930.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,951,110.28 : 121,322,105.64 = 54,853,898.82 : x
  2. Step 2: Convert to fraction form
    87,951,110.28/121,322,105.64 = 54,853,898.82/x
  3. Step 3: Cross multiply
    87,951,110.28x = 121,322,105.64 × 54,853,898.82
  4. Step 4: Simplify right side
    87,951,110.28x = 6,654,990,507,405,911
  5. Step 5: Solve for x
    x = 6,654,990,507,405,911/87,951,110.28
  6. Step 6: Final answer
    x = 75,666,930.03

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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.