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Finding the Fourth Proportional to 33,965,461.60, 50,873,542.80 and 20,478,767.20

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Solution

The fourth proportional to 33,965,461.60, 50,873,542.80 and 20,478,767.20 is: 30,673,142.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    33,965,461.60 : 50,873,542.80 = 20,478,767.20 : x
  2. Step 2: Convert to fraction form
    33,965,461.60/50,873,542.80 = 20,478,767.20/x
  3. Step 3: Cross multiply
    33,965,461.60x = 50,873,542.80 × 20,478,767.20
  4. Step 4: Simplify right side
    33,965,461.60x = 1,041,827,439,640,436
  5. Step 5: Solve for x
    x = 1,041,827,439,640,436/33,965,461.60
  6. Step 6: Final answer
    x = 30,673,142.38

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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.