Home / 648,084,543-894,365,067.42-354,722,812.44

Finding the Fourth Proportional to 648,084,543, 894,365,067.42 and 354,722,812.44

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Solution

The fourth proportional to 648,084,543, 894,365,067.42 and 354,722,812.44 is: 489,522,077.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    648,084,543 : 894,365,067.42 = 354,722,812.44 : x
  2. Step 2: Convert to fraction form
    648,084,543/894,365,067.42 = 354,722,812.44/x
  3. Step 3: Cross multiply
    648,084,543x = 894,365,067.42 × 354,722,812.44
  4. Step 4: Simplify right side
    648,084,543x = 317,251,692,063,312,576
  5. Step 5: Solve for x
    x = 317,251,692,063,312,576/648,084,543
  6. Step 6: Final answer
    x = 489,522,077.78

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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.