Home / 21,793,311.12-30,074,767.92-12,631,268.28

Finding the Fourth Proportional to 21,793,311.12, 30,074,767.92 and 12,631,268.28

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Solution

The fourth proportional to 21,793,311.12, 30,074,767.92 and 12,631,268.28 is: 17,431,149.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,793,311.12 : 30,074,767.92 = 12,631,268.28 : x
  2. Step 2: Convert to fraction form
    21,793,311.12/30,074,767.92 = 12,631,268.28/x
  3. Step 3: Cross multiply
    21,793,311.12x = 30,074,767.92 × 12,631,268.28
  4. Step 4: Simplify right side
    21,793,311.12x = 379,882,462,056,257.56
  5. Step 5: Solve for x
    x = 379,882,462,056,257.56/21,793,311.12
  6. Step 6: Final answer
    x = 17,431,149.40

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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.