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Finding the Fourth Proportional to 701,722,039.52, 968,384,067.29 and 388,461,484.86

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Solution

The fourth proportional to 701,722,039.52, 968,384,067.29 and 388,461,484.86 is: 536,081,085.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    701,722,039.52 : 968,384,067.29 = 388,461,484.86 : x
  2. Step 2: Convert to fraction form
    701,722,039.52/968,384,067.29 = 388,461,484.86/x
  3. Step 3: Cross multiply
    701,722,039.52x = 968,384,067.29 × 388,461,484.86
  4. Step 4: Simplify right side
    701,722,039.52x = 376,179,912,692,297,280
  5. Step 5: Solve for x
    x = 376,179,912,692,297,280/701,722,039.52
  6. Step 6: Final answer
    x = 536,081,085.54

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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.