Home / 78,709,789.68-108,654,339.38-50,846,085.87

Finding the Fourth Proportional to 78,709,789.68, 108,654,339.38 and 50,846,085.87

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Solution

The fourth proportional to 78,709,789.68, 108,654,339.38 and 50,846,085.87 is: 70,190,098.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,709,789.68 : 108,654,339.38 = 50,846,085.87 : x
  2. Step 2: Convert to fraction form
    78,709,789.68/108,654,339.38 = 50,846,085.87/x
  3. Step 3: Cross multiply
    78,709,789.68x = 108,654,339.38 × 50,846,085.87
  4. Step 4: Simplify right side
    78,709,789.68x = 5,524,647,870,009,372
  5. Step 5: Solve for x
    x = 5,524,647,870,009,372/78,709,789.68
  6. Step 6: Final answer
    x = 70,190,098.24

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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.