Home / 78,709,257.06-108,653,608.65-50,845,556.28

Finding the Fourth Proportional to 78,709,257.06, 108,653,608.65 and 50,845,556.28

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Solution

The fourth proportional to 78,709,257.06, 108,653,608.65 and 50,845,556.28 is: 70,189,370.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,709,257.06 : 108,653,608.65 = 50,845,556.28 : x
  2. Step 2: Convert to fraction form
    78,709,257.06/108,653,608.65 = 50,845,556.28/x
  3. Step 3: Cross multiply
    78,709,257.06x = 108,653,608.65 × 50,845,556.28
  4. Step 4: Simplify right side
    78,709,257.06x = 5,524,553,173,177,096
  5. Step 5: Solve for x
    x = 5,524,553,173,177,096/78,709,257.06
  6. Step 6: Final answer
    x = 70,189,370.09

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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.