Home / 68,640,520.15-94,729,759.55-38,876,462.65

Finding the Fourth Proportional to 68,640,520.15, 94,729,759.55 and 38,876,462.65

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Solution

The fourth proportional to 68,640,520.15, 94,729,759.55 and 38,876,462.65 is: 53,652,827.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,640,520.15 : 94,729,759.55 = 38,876,462.65 : x
  2. Step 2: Convert to fraction form
    68,640,520.15/94,729,759.55 = 38,876,462.65/x
  3. Step 3: Cross multiply
    68,640,520.15x = 94,729,759.55 × 38,876,462.65
  4. Step 4: Simplify right side
    68,640,520.15x = 3,682,757,958,989,055.50
  5. Step 5: Solve for x
    x = 3,682,757,958,989,055.50/68,640,520.15
  6. Step 6: Final answer
    x = 53,652,827.09

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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.