Home / 111,211,087.41-166,844,416.26-78,485,553.42

Finding the Fourth Proportional to 111,211,087.41, 166,844,416.26 and 78,485,553.42

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Solution

The fourth proportional to 111,211,087.41, 166,844,416.26 and 78,485,553.42 is: 117,747,939.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,211,087.41 : 166,844,416.26 = 78,485,553.42 : x
  2. Step 2: Convert to fraction form
    111,211,087.41/166,844,416.26 = 78,485,553.42/x
  3. Step 3: Cross multiply
    111,211,087.41x = 166,844,416.26 × 78,485,553.42
  4. Step 4: Simplify right side
    111,211,087.41x = 13,094,876,345,202,946
  5. Step 5: Solve for x
    x = 13,094,876,345,202,946/111,211,087.41
  6. Step 6: Final answer
    x = 117,747,939.08

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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.