Home / 21,697,812-29,944,380.24-12,040,020

Finding the Fourth Proportional to 21,697,812, 29,944,380.24 and 12,040,020

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Solution

The fourth proportional to 21,697,812, 29,944,380.24 and 12,040,020 is: 16,616,004.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,697,812 : 29,944,380.24 = 12,040,020 : x
  2. Step 2: Convert to fraction form
    21,697,812/29,944,380.24 = 12,040,020/x
  3. Step 3: Cross multiply
    21,697,812x = 29,944,380.24 × 12,040,020
  4. Step 4: Simplify right side
    21,697,812x = 360,530,936,977,204.75
  5. Step 5: Solve for x
    x = 360,530,936,977,204.75/21,697,812
  6. Step 6: Final answer
    x = 16,616,004.28

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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.