Home / 66,512,205.54-91,789,632.66-38,254,586.79

Finding the Fourth Proportional to 66,512,205.54, 91,789,632.66 and 38,254,586.79

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Solution

The fourth proportional to 66,512,205.54, 91,789,632.66 and 38,254,586.79 is: 52,792,933.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,512,205.54 : 91,789,632.66 = 38,254,586.79 : x
  2. Step 2: Convert to fraction form
    66,512,205.54/91,789,632.66 = 38,254,586.79/x
  3. Step 3: Cross multiply
    66,512,205.54x = 91,789,632.66 × 38,254,586.79
  4. Step 4: Simplify right side
    66,512,205.54x = 3,511,374,469,014,188.50
  5. Step 5: Solve for x
    x = 3,511,374,469,014,188.50/66,512,205.54
  6. Step 6: Final answer
    x = 52,792,933.88

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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.