Home / 40,195,908.30-55,468,752.57-21,861,208.38

Finding the Fourth Proportional to 40,195,908.30, 55,468,752.57 and 21,861,208.38

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Solution

The fourth proportional to 40,195,908.30, 55,468,752.57 and 21,861,208.38 is: 30,167,596.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,195,908.30 : 55,468,752.57 = 21,861,208.38 : x
  2. Step 2: Convert to fraction form
    40,195,908.30/55,468,752.57 = 21,861,208.38/x
  3. Step 3: Cross multiply
    40,195,908.30x = 55,468,752.57 × 21,861,208.38
  4. Step 4: Simplify right side
    40,195,908.30x = 1,212,613,958,511,430.50
  5. Step 5: Solve for x
    x = 1,212,613,958,511,430.50/40,195,908.30
  6. Step 6: Final answer
    x = 30,167,596.90

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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.