Home / 1,328,542,974.80-1,992,814,462.20-345,967,614.80

Finding the Fourth Proportional to 1,328,542,974.80, 1,992,814,462.20 and 345,967,614.80

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Solution

The fourth proportional to 1,328,542,974.80, 1,992,814,462.20 and 345,967,614.80 is: 518,951,422.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,328,542,974.80 : 1,992,814,462.20 = 345,967,614.80 : x
  2. Step 2: Convert to fraction form
    1,328,542,974.80/1,992,814,462.20 = 345,967,614.80/x
  3. Step 3: Cross multiply
    1,328,542,974.80x = 1,992,814,462.20 × 345,967,614.80
  4. Step 4: Simplify right side
    1,328,542,974.80x = 689,449,266,226,278,784
  5. Step 5: Solve for x
    x = 689,449,266,226,278,784/1,328,542,974.80
  6. Step 6: Final answer
    x = 518,951,422.20

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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.