Home / 31,162,004.85-43,008,797.94-21,098,939.88

Finding the Fourth Proportional to 31,162,004.85, 43,008,797.94 and 21,098,939.88

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Solution

The fourth proportional to 31,162,004.85, 43,008,797.94 and 21,098,939.88 is: 29,120,078.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,162,004.85 : 43,008,797.94 = 21,098,939.88 : x
  2. Step 2: Convert to fraction form
    31,162,004.85/43,008,797.94 = 21,098,939.88/x
  3. Step 3: Cross multiply
    31,162,004.85x = 43,008,797.94 × 21,098,939.88
  4. Step 4: Simplify right side
    31,162,004.85x = 907,440,042,047,127.75
  5. Step 5: Solve for x
    x = 907,440,042,047,127.75/31,162,004.85
  6. Step 6: Final answer
    x = 29,120,078.97

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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.