Home / 813,940,015.29-1,220,917,523.99-231,674,101.66

Finding the Fourth Proportional to 813,940,015.29, 1,220,917,523.99 and 231,674,101.66

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Solution

The fourth proportional to 813,940,015.29, 1,220,917,523.99 and 231,674,101.66 is: 347,513,287.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    813,940,015.29 : 1,220,917,523.99 = 231,674,101.66 : x
  2. Step 2: Convert to fraction form
    813,940,015.29/1,220,917,523.99 = 231,674,101.66/x
  3. Step 3: Cross multiply
    813,940,015.29x = 1,220,917,523.99 × 231,674,101.66
  4. Step 4: Simplify right side
    813,940,015.29x = 282,854,970,571,690,304
  5. Step 5: Solve for x
    x = 282,854,970,571,690,304/813,940,015.29
  6. Step 6: Final answer
    x = 347,513,287.54

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.