Home / 387,073,908.80-580,610,863.20-378,115,956.80

Finding the Fourth Proportional to 387,073,908.80, 580,610,863.20 and 378,115,956.80

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Solution

The fourth proportional to 387,073,908.80, 580,610,863.20 and 378,115,956.80 is: 567,173,935.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    387,073,908.80 : 580,610,863.20 = 378,115,956.80 : x
  2. Step 2: Convert to fraction form
    387,073,908.80/580,610,863.20 = 378,115,956.80/x
  3. Step 3: Cross multiply
    387,073,908.80x = 580,610,863.20 × 378,115,956.80
  4. Step 4: Simplify right side
    387,073,908.80x = 219,538,232,067,341,920
  5. Step 5: Solve for x
    x = 219,538,232,067,341,920/387,073,908.80
  6. Step 6: Final answer
    x = 567,173,935.20

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.