Home / 55,161,788.78-82,713,956.92-20,589,763.86

Finding the Fourth Proportional to 55,161,788.78, 82,713,956.92 and 20,589,763.86

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Solution

The fourth proportional to 55,161,788.78, 82,713,956.92 and 20,589,763.86 is: 30,873,923.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,161,788.78 : 82,713,956.92 = 20,589,763.86 : x
  2. Step 2: Convert to fraction form
    55,161,788.78/82,713,956.92 = 20,589,763.86/x
  3. Step 3: Cross multiply
    55,161,788.78x = 82,713,956.92 × 20,589,763.86
  4. Step 4: Simplify right side
    55,161,788.78x = 1,703,060,840,857,538.50
  5. Step 5: Solve for x
    x = 1,703,060,840,857,538.50/55,161,788.78
  6. Step 6: Final answer
    x = 30,873,923.39

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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.