Home / 640,215,783.92-883,010,326.73-551,059,470.29

Finding the Fourth Proportional to 640,215,783.92, 883,010,326.73 and 551,059,470.29

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Solution

The fourth proportional to 640,215,783.92, 883,010,326.73 and 551,059,470.29 is: 760,042,496.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    640,215,783.92 : 883,010,326.73 = 551,059,470.29 : x
  2. Step 2: Convert to fraction form
    640,215,783.92/883,010,326.73 = 551,059,470.29/x
  3. Step 3: Cross multiply
    640,215,783.92x = 883,010,326.73 × 551,059,470.29
  4. Step 4: Simplify right side
    640,215,783.92x = 486,591,202,907,557,760
  5. Step 5: Solve for x
    x = 486,591,202,907,557,760/640,215,783.92
  6. Step 6: Final answer
    x = 760,042,496.81

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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.