Home / 305,979,945.30-422,240,005.89-166,747,717.62

Finding the Fourth Proportional to 305,979,945.30, 422,240,005.89 and 166,747,717.62

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Solution

The fourth proportional to 305,979,945.30, 422,240,005.89 and 166,747,717.62 is: 230,105,137.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    305,979,945.30 : 422,240,005.89 = 166,747,717.62 : x
  2. Step 2: Convert to fraction form
    305,979,945.30/422,240,005.89 = 166,747,717.62/x
  3. Step 3: Cross multiply
    305,979,945.30x = 422,240,005.89 × 166,747,717.62
  4. Step 4: Simplify right side
    305,979,945.30x = 70,407,557,270,012,856
  5. Step 5: Solve for x
    x = 70,407,557,270,012,856/305,979,945.30
  6. Step 6: Final answer
    x = 230,105,137.12

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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.