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Finding the Fourth Proportional to 55,053,120.41, 75,978,147.59 and 30,277,672.68

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Solution

The fourth proportional to 55,053,120.41, 75,978,147.59 and 30,277,672.68 is: 41,785,850.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,053,120.41 : 75,978,147.59 = 30,277,672.68 : x
  2. Step 2: Convert to fraction form
    55,053,120.41/75,978,147.59 = 30,277,672.68/x
  3. Step 3: Cross multiply
    55,053,120.41x = 75,978,147.59 × 30,277,672.68
  4. Step 4: Simplify right side
    55,053,120.41x = 2,300,441,483,562,751
  5. Step 5: Solve for x
    x = 2,300,441,483,562,751/55,053,120.41
  6. Step 6: Final answer
    x = 41,785,850.95

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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.