Home / 57,212,745.93-78,952,659.15-31,107,921.12

Finding the Fourth Proportional to 57,212,745.93, 78,952,659.15 and 31,107,921.12

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Solution

The fourth proportional to 57,212,745.93, 78,952,659.15 and 31,107,921.12 is: 42,928,425.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,212,745.93 : 78,952,659.15 = 31,107,921.12 : x
  2. Step 2: Convert to fraction form
    57,212,745.93/78,952,659.15 = 31,107,921.12/x
  3. Step 3: Cross multiply
    57,212,745.93x = 78,952,659.15 × 31,107,921.12
  4. Step 4: Simplify right side
    57,212,745.93x = 2,456,053,093,052,446.50
  5. Step 5: Solve for x
    x = 2,456,053,093,052,446.50/57,212,745.93
  6. Step 6: Final answer
    x = 42,928,425.36

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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.