Home / 78,546,143.31-117,738,373.84-34,847,481.39

Finding the Fourth Proportional to 78,546,143.31, 117,738,373.84 and 34,847,481.39

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Solution

The fourth proportional to 78,546,143.31, 117,738,373.84 and 34,847,481.39 is: 52,235,356.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,546,143.31 : 117,738,373.84 = 34,847,481.39 : x
  2. Step 2: Convert to fraction form
    78,546,143.31/117,738,373.84 = 34,847,481.39/x
  3. Step 3: Cross multiply
    78,546,143.31x = 117,738,373.84 × 34,847,481.39
  4. Step 4: Simplify right side
    78,546,143.31x = 4,102,885,790,749,625
  5. Step 5: Solve for x
    x = 4,102,885,790,749,625/78,546,143.31
  6. Step 6: Final answer
    x = 52,235,356.42

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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.