Home / 387,085,695.73-534,179,236.46-210,874,975.02

Finding the Fourth Proportional to 387,085,695.73, 534,179,236.46 and 210,874,975.02

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Solution

The fourth proportional to 387,085,695.73, 534,179,236.46 and 210,874,975.02 is: 291,007,997.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    387,085,695.73 : 534,179,236.46 = 210,874,975.02 : x
  2. Step 2: Convert to fraction form
    387,085,695.73/534,179,236.46 = 210,874,975.02/x
  3. Step 3: Cross multiply
    387,085,695.73x = 534,179,236.46 × 210,874,975.02
  4. Step 4: Simplify right side
    387,085,695.73x = 112,645,033,143,650,800
  5. Step 5: Solve for x
    x = 112,645,033,143,650,800/387,085,695.73
  6. Step 6: Final answer
    x = 291,007,997.42

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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.