Home / 40,986,505.71-61,441,924.68-20,498,396.89

Finding the Fourth Proportional to 40,986,505.71, 61,441,924.68 and 20,498,396.89

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Solution

The fourth proportional to 40,986,505.71, 61,441,924.68 and 20,498,396.89 is: 30,728,673.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,986,505.71 : 61,441,924.68 = 20,498,396.89 : x
  2. Step 2: Convert to fraction form
    40,986,505.71/61,441,924.68 = 20,498,396.89/x
  3. Step 3: Cross multiply
    40,986,505.71x = 61,441,924.68 × 20,498,396.89
  4. Step 4: Simplify right side
    40,986,505.71x = 1,259,460,957,795,192.25
  5. Step 5: Solve for x
    x = 1,259,460,957,795,192.25/40,986,505.71
  6. Step 6: Final answer
    x = 30,728,673.65

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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.