Home / 310,286,712.88-428,198,963.52-171,062,456.91

Finding the Fourth Proportional to 310,286,712.88, 428,198,963.52 and 171,062,456.91

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Solution

The fourth proportional to 310,286,712.88, 428,198,963.52 and 171,062,456.91 is: 236,068,009.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    310,286,712.88 : 428,198,963.52 = 171,062,456.91 : x
  2. Step 2: Convert to fraction form
    310,286,712.88/428,198,963.52 = 171,062,456.91/x
  3. Step 3: Cross multiply
    310,286,712.88x = 428,198,963.52 × 171,062,456.91
  4. Step 4: Simplify right side
    310,286,712.88x = 73,248,766,746,046,656
  5. Step 5: Solve for x
    x = 73,248,766,746,046,656/310,286,712.88
  6. Step 6: Final answer
    x = 236,068,009.70

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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.