Home / 679,218,942.88-1,017,789,191.44-457,067,586.88

Finding the Fourth Proportional to 679,218,942.88, 1,017,789,191.44 and 457,067,586.88

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Solution

The fourth proportional to 679,218,942.88, 1,017,789,191.44 and 457,067,586.88 is: 684,902,054.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    679,218,942.88 : 1,017,789,191.44 = 457,067,586.88 : x
  2. Step 2: Convert to fraction form
    679,218,942.88/1,017,789,191.44 = 457,067,586.88/x
  3. Step 3: Cross multiply
    679,218,942.88x = 1,017,789,191.44 × 457,067,586.88
  4. Step 4: Simplify right side
    679,218,942.88x = 465,198,449,684,027,200
  5. Step 5: Solve for x
    x = 465,198,449,684,027,200/679,218,942.88
  6. Step 6: Final answer
    x = 684,902,054.87

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1.5x scale

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.