Home / 78,117,168.55-117,198,505.11-34,976,282.84

Finding the Fourth Proportional to 78,117,168.55, 117,198,505.11 and 34,976,282.84

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Solution

The fourth proportional to 78,117,168.55, 117,198,505.11 and 34,976,282.84 is: 52,474,611.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,117,168.55 : 117,198,505.11 = 34,976,282.84 : x
  2. Step 2: Convert to fraction form
    78,117,168.55/117,198,505.11 = 34,976,282.84/x
  3. Step 3: Cross multiply
    78,117,168.55x = 117,198,505.11 × 34,976,282.84
  4. Step 4: Simplify right side
    78,117,168.55x = 4,099,168,063,466,887.50
  5. Step 5: Solve for x
    x = 4,099,168,063,466,887.50/78,117,168.55
  6. Step 6: Final answer
    x = 52,474,611.40

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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.