Home / 773,380,797.28-1,067,288,185.60-420,979,776.96

Finding the Fourth Proportional to 773,380,797.28, 1,067,288,185.60 and 420,979,776.96

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Solution

The fourth proportional to 773,380,797.28, 1,067,288,185.60 and 420,979,776.96 is: 580,964,440.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    773,380,797.28 : 1,067,288,185.60 = 420,979,776.96 : x
  2. Step 2: Convert to fraction form
    773,380,797.28/1,067,288,185.60 = 420,979,776.96/x
  3. Step 3: Cross multiply
    773,380,797.28x = 1,067,288,185.60 × 420,979,776.96
  4. Step 4: Simplify right side
    773,380,797.28x = 449,306,742,325,931,072
  5. Step 5: Solve for x
    x = 449,306,742,325,931,072/773,380,797.28
  6. Step 6: Final answer
    x = 580,964,440.68

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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.