Home / 21,647,069.10-29,871,893.81-11,857,556.72

Finding the Fourth Proportional to 21,647,069.10, 29,871,893.81 and 11,857,556.72

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Solution

The fourth proportional to 21,647,069.10, 29,871,893.81 and 11,857,556.72 is: 16,362,846.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,647,069.10 : 29,871,893.81 = 11,857,556.72 : x
  2. Step 2: Convert to fraction form
    21,647,069.10/29,871,893.81 = 11,857,556.72/x
  3. Step 3: Cross multiply
    21,647,069.10x = 29,871,893.81 × 11,857,556.72
  4. Step 4: Simplify right side
    21,647,069.10x = 354,207,675,290,215.56
  5. Step 5: Solve for x
    x = 354,207,675,290,215.56/21,647,069.10
  6. Step 6: Final answer
    x = 16,362,846.80

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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.