Home / 158,042,102.37-218,103,940.67-86,519,997.56

Finding the Fourth Proportional to 158,042,102.37, 218,103,940.67 and 86,519,997.56

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Solution

The fourth proportional to 158,042,102.37, 218,103,940.67 and 86,519,997.56 is: 119,400,793.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    158,042,102.37 : 218,103,940.67 = 86,519,997.56 : x
  2. Step 2: Convert to fraction form
    158,042,102.37/218,103,940.67 = 86,519,997.56/x
  3. Step 3: Cross multiply
    158,042,102.37x = 218,103,940.67 × 86,519,997.56
  4. Step 4: Simplify right side
    158,042,102.37x = 18,870,352,414,594,784
  5. Step 5: Solve for x
    x = 18,870,352,414,594,784/158,042,102.37
  6. Step 6: Final answer
    x = 119,400,793.41

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.