Home / 729,071,960.29-1,006,121,845.62-394,544,398.86

Finding the Fourth Proportional to 729,071,960.29, 1,006,121,845.62 and 394,544,398.86

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Solution

The fourth proportional to 729,071,960.29, 1,006,121,845.62 and 394,544,398.86 is: 544,472,645.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    729,071,960.29 : 1,006,121,845.62 = 394,544,398.86 : x
  2. Step 2: Convert to fraction form
    729,071,960.29/1,006,121,845.62 = 394,544,398.86/x
  3. Step 3: Cross multiply
    729,071,960.29x = 1,006,121,845.62 × 394,544,398.86
  4. Step 4: Simplify right side
    729,071,960.29x = 396,959,738,760,056,640
  5. Step 5: Solve for x
    x = 396,959,738,760,056,640/729,071,960.29
  6. Step 6: Final answer
    x = 544,472,645.20

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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.