Home / 20,982,135,486.12-31,469,755,801.14-7,533,635,391.96

Finding the Fourth Proportional to 20,982,135,486.12, 31,469,755,801.14 and 7,533,635,391.96

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Solution

The fourth proportional to 20,982,135,486.12, 31,469,755,801.14 and 7,533,635,391.96 is: 11,299,215,288.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,982,135,486.12 : 31,469,755,801.14 = 7,533,635,391.96 : x
  2. Step 2: Convert to fraction form
    20,982,135,486.12/31,469,755,801.14 = 7,533,635,391.96/x
  3. Step 3: Cross multiply
    20,982,135,486.12x = 31,469,755,801.14 × 7,533,635,391.96
  4. Step 4: Simplify right side
    20,982,135,486.12x = 237,081,666,079,806,816,256
  5. Step 5: Solve for x
    x = 237,081,666,079,806,816,256/20,982,135,486.12
  6. Step 6: Final answer
    x = 11,299,215,288.96

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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.