Home / 40,004,532.80-55,206,520.28-21,669,818.12

Finding the Fourth Proportional to 40,004,532.80, 55,206,520.28 and 21,669,818.12

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Solution

The fourth proportional to 40,004,532.80, 55,206,520.28 and 21,669,818.12 is: 29,904,492.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,004,532.80 : 55,206,520.28 = 21,669,818.12 : x
  2. Step 2: Convert to fraction form
    40,004,532.80/55,206,520.28 = 21,669,818.12/x
  3. Step 3: Cross multiply
    40,004,532.80x = 55,206,520.28 × 21,669,818.12
  4. Step 4: Simplify right side
    40,004,532.80x = 1,196,315,253,505,691.50
  5. Step 5: Solve for x
    x = 1,196,315,253,505,691.50/40,004,532.80
  6. Step 6: Final answer
    x = 29,904,492.56

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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.