Home / 81,079,163.88-111,887,863.26-43,909,142.13

Finding the Fourth Proportional to 81,079,163.88, 111,887,863.26 and 43,909,142.13

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Solution

The fourth proportional to 81,079,163.88, 111,887,863.26 and 43,909,142.13 is: 60,593,867.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,079,163.88 : 111,887,863.26 = 43,909,142.13 : x
  2. Step 2: Convert to fraction form
    81,079,163.88/111,887,863.26 = 43,909,142.13/x
  3. Step 3: Cross multiply
    81,079,163.88x = 111,887,863.26 × 43,909,142.13
  4. Step 4: Simplify right side
    81,079,163.88x = 4,912,900,090,505,346
  5. Step 5: Solve for x
    x = 4,912,900,090,505,346/81,079,163.88
  6. Step 6: Final answer
    x = 60,593,867.22

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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.