Home / 878,247,174.78-1,211,982,940.80-481,773,366

Finding the Fourth Proportional to 878,247,174.78, 1,211,982,940.80 and 481,773,366

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Solution

The fourth proportional to 878,247,174.78, 1,211,982,940.80 and 481,773,366 is: 664,848,254.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    878,247,174.78 : 1,211,982,940.80 = 481,773,366 : x
  2. Step 2: Convert to fraction form
    878,247,174.78/1,211,982,940.80 = 481,773,366/x
  3. Step 3: Cross multiply
    878,247,174.78x = 1,211,982,940.80 × 481,773,366
  4. Step 4: Simplify right side
    878,247,174.78x = 583,901,100,923,794,688
  5. Step 5: Solve for x
    x = 583,901,100,923,794,688/878,247,174.78
  6. Step 6: Final answer
    x = 664,848,254.22

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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.