Home / 68,858,643.10-103,263,824.49-20,323,546.78

Finding the Fourth Proportional to 68,858,643.10, 103,263,824.49 and 20,323,546.78

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Solution

The fourth proportional to 68,858,643.10, 103,263,824.49 and 20,323,546.78 is: 30,478,195.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,858,643.10 : 103,263,824.49 = 20,323,546.78 : x
  2. Step 2: Convert to fraction form
    68,858,643.10/103,263,824.49 = 20,323,546.78/x
  3. Step 3: Cross multiply
    68,858,643.10x = 103,263,824.49 × 20,323,546.78
  4. Step 4: Simplify right side
    68,858,643.10x = 2,098,687,167,704,224.75
  5. Step 5: Solve for x
    x = 2,098,687,167,704,224.75/68,858,643.10
  6. Step 6: Final answer
    x = 30,478,195.23

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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.