Home / 129,901,383.07-179,263,893.77-77,690,410.36

Finding the Fourth Proportional to 129,901,383.07, 179,263,893.77 and 77,690,410.36

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Solution

The fourth proportional to 129,901,383.07, 179,263,893.77 and 77,690,410.36 is: 107,212,757.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,901,383.07 : 179,263,893.77 = 77,690,410.36 : x
  2. Step 2: Convert to fraction form
    129,901,383.07/179,263,893.77 = 77,690,410.36/x
  3. Step 3: Cross multiply
    129,901,383.07x = 179,263,893.77 × 77,690,410.36
  4. Step 4: Simplify right side
    129,901,383.07x = 13,927,085,469,722,748
  5. Step 5: Solve for x
    x = 13,927,085,469,722,748/129,901,383.07
  6. Step 6: Final answer
    x = 107,212,757.41

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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.