Home / 76,999,723.20-115,499,584.80-25,864,747.20

Finding the Fourth Proportional to 76,999,723.20, 115,499,584.80 and 25,864,747.20

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Solution

The fourth proportional to 76,999,723.20, 115,499,584.80 and 25,864,747.20 is: 38,797,120.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,999,723.20 : 115,499,584.80 = 25,864,747.20 : x
  2. Step 2: Convert to fraction form
    76,999,723.20/115,499,584.80 = 25,864,747.20/x
  3. Step 3: Cross multiply
    76,999,723.20x = 115,499,584.80 × 25,864,747.20
  4. Step 4: Simplify right side
    76,999,723.20x = 2,987,367,562,556,962.50
  5. Step 5: Solve for x
    x = 2,987,367,562,556,962.50/76,999,723.20
  6. Step 6: Final answer
    x = 38,797,120.80

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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.