Home / 76,810,768.86-115,227,613.17-28,284,893.58

Finding the Fourth Proportional to 76,810,768.86, 115,227,613.17 and 28,284,893.58

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Solution

The fourth proportional to 76,810,768.86, 115,227,613.17 and 28,284,893.58 is: 42,431,560.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,810,768.86 : 115,227,613.17 = 28,284,893.58 : x
  2. Step 2: Convert to fraction form
    76,810,768.86/115,227,613.17 = 28,284,893.58/x
  3. Step 3: Cross multiply
    76,810,768.86x = 115,227,613.17 × 28,284,893.58
  4. Step 4: Simplify right side
    76,810,768.86x = 3,259,200,775,990,856.50
  5. Step 5: Solve for x
    x = 3,259,200,775,990,856.50/76,810,768.86
  6. Step 6: Final answer
    x = 42,431,560.37

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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.