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Finding the Fourth Proportional to 40,933,404.60, 61,358,772.60 and 20,431,591.80

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Solution

The fourth proportional to 40,933,404.60, 61,358,772.60 and 20,431,591.80 is: 30,626,756.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,933,404.60 : 61,358,772.60 = 20,431,591.80 : x
  2. Step 2: Convert to fraction form
    40,933,404.60/61,358,772.60 = 20,431,591.80/x
  3. Step 3: Cross multiply
    40,933,404.60x = 61,358,772.60 × 20,431,591.80
  4. Step 4: Simplify right side
    40,933,404.60x = 1,253,657,395,112,224.75
  5. Step 5: Solve for x
    x = 1,253,657,395,112,224.75/40,933,404.60
  6. Step 6: Final answer
    x = 30,626,756.00

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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.