Home / 143,633,379.44-198,214,285.40-81,753,717.36

Finding the Fourth Proportional to 143,633,379.44, 198,214,285.40 and 81,753,717.36

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Solution

The fourth proportional to 143,633,379.44, 198,214,285.40 and 81,753,717.36 is: 112,820,256.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,633,379.44 : 198,214,285.40 = 81,753,717.36 : x
  2. Step 2: Convert to fraction form
    143,633,379.44/198,214,285.40 = 81,753,717.36/x
  3. Step 3: Cross multiply
    143,633,379.44x = 198,214,285.40 × 81,753,717.36
  4. Step 4: Simplify right side
    143,633,379.44x = 16,204,754,665,305,974
  5. Step 5: Solve for x
    x = 16,204,754,665,305,974/143,633,379.44
  6. Step 6: Final answer
    x = 112,820,256.19

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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.