Home / 78,709,791.62-108,654,342.03-50,846,087.68

Finding the Fourth Proportional to 78,709,791.62, 108,654,342.03 and 50,846,087.68

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Solution

The fourth proportional to 78,709,791.62, 108,654,342.03 and 50,846,087.68 is: 70,190,100.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,709,791.62 : 108,654,342.03 = 50,846,087.68 : x
  2. Step 2: Convert to fraction form
    78,709,791.62/108,654,342.03 = 50,846,087.68/x
  3. Step 3: Cross multiply
    78,709,791.62x = 108,654,342.03 × 50,846,087.68
  4. Step 4: Simplify right side
    78,709,791.62x = 5,524,648,201,398,454
  5. Step 5: Solve for x
    x = 5,524,648,201,398,454/78,709,791.62
  6. Step 6: Final answer
    x = 70,190,100.72

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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.