Home / 78,299,135.68-117,449,884.50-27,182,778.40

Finding the Fourth Proportional to 78,299,135.68, 117,449,884.50 and 27,182,778.40

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Solution

The fourth proportional to 78,299,135.68, 117,449,884.50 and 27,182,778.40 is: 40,774,577.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,299,135.68 : 117,449,884.50 = 27,182,778.40 : x
  2. Step 2: Convert to fraction form
    78,299,135.68/117,449,884.50 = 27,182,778.40/x
  3. Step 3: Cross multiply
    78,299,135.68x = 117,449,884.50 × 27,182,778.40
  4. Step 4: Simplify right side
    78,299,135.68x = 3,192,614,183,469,094.50
  5. Step 5: Solve for x
    x = 3,192,614,183,469,094.50/78,299,135.68
  6. Step 6: Final answer
    x = 40,774,577.60

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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.