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Finding the Fourth Proportional to 84,253,669.65, 126,380,504.48 and 84,253,669.65

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Solution

The fourth proportional to 84,253,669.65, 126,380,504.48 and 84,253,669.65 is: 126,380,504.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,253,669.65 : 126,380,504.48 = 84,253,669.65 : x
  2. Step 2: Convert to fraction form
    84,253,669.65/126,380,504.48 = 84,253,669.65/x
  3. Step 3: Cross multiply
    84,253,669.65x = 126,380,504.48 × 84,253,669.65
  4. Step 4: Simplify right side
    84,253,669.65x = 10,648,021,274,236,996
  5. Step 5: Solve for x
    x = 10,648,021,274,236,996/84,253,669.65
  6. Step 6: Final answer
    x = 126,380,504.48

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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.