Home / 131,167,972.40-196,751,958.60-40,296,081.20

Finding the Fourth Proportional to 131,167,972.40, 196,751,958.60 and 40,296,081.20

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Solution

The fourth proportional to 131,167,972.40, 196,751,958.60 and 40,296,081.20 is: 60,444,121.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,167,972.40 : 196,751,958.60 = 40,296,081.20 : x
  2. Step 2: Convert to fraction form
    131,167,972.40/196,751,958.60 = 40,296,081.20/x
  3. Step 3: Cross multiply
    131,167,972.40x = 196,751,958.60 × 40,296,081.20
  4. Step 4: Simplify right side
    131,167,972.40x = 7,928,332,900,004,639
  5. Step 5: Solve for x
    x = 7,928,332,900,004,639/131,167,972.40
  6. Step 6: Final answer
    x = 60,444,121.80

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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.