Home / 111,268,191.91-166,868,128.12-76,945,157.97

Finding the Fourth Proportional to 111,268,191.91, 166,868,128.12 and 76,945,157.97

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Solution

The fourth proportional to 111,268,191.91, 166,868,128.12 and 76,945,157.97 is: 115,394,114.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,268,191.91 : 166,868,128.12 = 76,945,157.97 : x
  2. Step 2: Convert to fraction form
    111,268,191.91/166,868,128.12 = 76,945,157.97/x
  3. Step 3: Cross multiply
    111,268,191.91x = 166,868,128.12 × 76,945,157.97
  4. Step 4: Simplify right side
    111,268,191.91x = 12,839,694,477,921,228
  5. Step 5: Solve for x
    x = 12,839,694,477,921,228/111,268,191.91
  6. Step 6: Final answer
    x = 115,394,114.50

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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.