Home / 78,384,992.38-108,171,710.08-43,105,072.46

Finding the Fourth Proportional to 78,384,992.38, 108,171,710.08 and 43,105,072.46

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Solution

The fourth proportional to 78,384,992.38, 108,171,710.08 and 43,105,072.46 is: 59,485,231.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,384,992.38 : 108,171,710.08 = 43,105,072.46 : x
  2. Step 2: Convert to fraction form
    78,384,992.38/108,171,710.08 = 43,105,072.46/x
  3. Step 3: Cross multiply
    78,384,992.38x = 108,171,710.08 × 43,105,072.46
  4. Step 4: Simplify right side
    78,384,992.38x = 4,662,749,401,120,512
  5. Step 5: Solve for x
    x = 4,662,749,401,120,512/78,384,992.38
  6. Step 6: Final answer
    x = 59,485,231.29

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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.