Home / 664,591,224.84-917,188,171.38-378,494,848.08

Finding the Fourth Proportional to 664,591,224.84, 917,188,171.38 and 378,494,848.08

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Solution

The fourth proportional to 664,591,224.84, 917,188,171.38 and 378,494,848.08 is: 522,352,665.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    664,591,224.84 : 917,188,171.38 = 378,494,848.08 : x
  2. Step 2: Convert to fraction form
    664,591,224.84/917,188,171.38 = 378,494,848.08/x
  3. Step 3: Cross multiply
    664,591,224.84x = 917,188,171.38 × 378,494,848.08
  4. Step 4: Simplify right side
    664,591,224.84x = 347,150,997,587,246,080
  5. Step 5: Solve for x
    x = 347,150,997,587,246,080/664,591,224.84
  6. Step 6: Final answer
    x = 522,352,665.24

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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.