Home / 78,005,276.55-117,007,914.83-39,741,524.55

Finding the Fourth Proportional to 78,005,276.55, 117,007,914.83 and 39,741,524.55

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Solution

The fourth proportional to 78,005,276.55, 117,007,914.83 and 39,741,524.55 is: 59,612,286.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,005,276.55 : 117,007,914.83 = 39,741,524.55 : x
  2. Step 2: Convert to fraction form
    78,005,276.55/117,007,914.83 = 39,741,524.55/x
  3. Step 3: Cross multiply
    78,005,276.55x = 117,007,914.83 × 39,741,524.55
  4. Step 4: Simplify right side
    78,005,276.55x = 4,650,072,919,562,046
  5. Step 5: Solve for x
    x = 4,650,072,919,562,046/78,005,276.55
  6. Step 6: Final answer
    x = 59,612,286.83

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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.