Home / 378,153,656.64-522,282,512.96-254,179,100.16

Finding the Fourth Proportional to 378,153,656.64, 522,282,512.96 and 254,179,100.16

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Solution

The fourth proportional to 378,153,656.64, 522,282,512.96 and 254,179,100.16 is: 351,056,500.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    378,153,656.64 : 522,282,512.96 = 254,179,100.16 : x
  2. Step 2: Convert to fraction form
    378,153,656.64/522,282,512.96 = 254,179,100.16/x
  3. Step 3: Cross multiply
    378,153,656.64x = 522,282,512.96 × 254,179,100.16
  4. Step 4: Simplify right side
    378,153,656.64x = 132,753,299,173,476,336
  5. Step 5: Solve for x
    x = 132,753,299,173,476,336/378,153,656.64
  6. Step 6: Final answer
    x = 351,056,500.03

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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.