Home / 78,546,143.69-117,738,374.41-34,847,481.75

Finding the Fourth Proportional to 78,546,143.69, 117,738,374.41 and 34,847,481.75

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Solution

The fourth proportional to 78,546,143.69, 117,738,374.41 and 34,847,481.75 is: 52,235,356.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,546,143.69 : 117,738,374.41 = 34,847,481.75 : x
  2. Step 2: Convert to fraction form
    78,546,143.69/117,738,374.41 = 34,847,481.75/x
  3. Step 3: Cross multiply
    78,546,143.69x = 117,738,374.41 × 34,847,481.75
  4. Step 4: Simplify right side
    78,546,143.69x = 4,102,885,853,352,904.50
  5. Step 5: Solve for x
    x = 4,102,885,853,352,904.50/78,546,143.69
  6. Step 6: Final answer
    x = 52,235,356.96

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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.