Home / 81,707,864.43-122,560,746.87-27,145,538.67

Finding the Fourth Proportional to 81,707,864.43, 122,560,746.87 and 27,145,538.67

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Solution

The fourth proportional to 81,707,864.43, 122,560,746.87 and 27,145,538.67 is: 40,717,959.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,707,864.43 : 122,560,746.87 = 27,145,538.67 : x
  2. Step 2: Convert to fraction form
    81,707,864.43/122,560,746.87 = 27,145,538.67/x
  3. Step 3: Cross multiply
    81,707,864.43x = 122,560,746.87 × 27,145,538.67
  4. Step 4: Simplify right side
    81,707,864.43x = 3,326,977,493,583,667
  5. Step 5: Solve for x
    x = 3,326,977,493,583,667/81,707,864.43
  6. Step 6: Final answer
    x = 40,717,959.24

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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.