Home / 21,715,989.80-29,961,346.02-12,545,286.44

Finding the Fourth Proportional to 21,715,989.80, 29,961,346.02 and 12,545,286.44

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Solution

The fourth proportional to 21,715,989.80, 29,961,346.02 and 12,545,286.44 is: 17,308,613.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,715,989.80 : 29,961,346.02 = 12,545,286.44 : x
  2. Step 2: Convert to fraction form
    21,715,989.80/29,961,346.02 = 12,545,286.44/x
  3. Step 3: Cross multiply
    21,715,989.80x = 29,961,346.02 × 12,545,286.44
  4. Step 4: Simplify right side
    21,715,989.80x = 375,873,667,948,853.94
  5. Step 5: Solve for x
    x = 375,873,667,948,853.94/21,715,989.80
  6. Step 6: Final answer
    x = 17,308,613.21

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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.