Home / 76,979,564.92-115,486,580.88-25,860,189.52

Finding the Fourth Proportional to 76,979,564.92, 115,486,580.88 and 25,860,189.52

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Solution

The fourth proportional to 76,979,564.92, 115,486,580.88 and 25,860,189.52 is: 38,796,073.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,979,564.92 : 115,486,580.88 = 25,860,189.52 : x
  2. Step 2: Convert to fraction form
    76,979,564.92/115,486,580.88 = 25,860,189.52/x
  3. Step 3: Cross multiply
    76,979,564.92x = 115,486,580.88 × 25,860,189.52
  4. Step 4: Simplify right side
    76,979,564.92x = 2,986,504,868,573,608
  5. Step 5: Solve for x
    x = 2,986,504,868,573,608/76,979,564.92
  6. Step 6: Final answer
    x = 38,796,073.63

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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.