Home / 21,587,670.20-29,790,936.40-12,295,239.64

Finding the Fourth Proportional to 21,587,670.20, 29,790,936.40 and 12,295,239.64

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Solution

The fourth proportional to 21,587,670.20, 29,790,936.40 and 12,295,239.64 is: 16,967,403.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,587,670.20 : 29,790,936.40 = 12,295,239.64 : x
  2. Step 2: Convert to fraction form
    21,587,670.20/29,790,936.40 = 12,295,239.64/x
  3. Step 3: Cross multiply
    21,587,670.20x = 29,790,936.40 × 12,295,239.64
  4. Step 4: Simplify right side
    21,587,670.20x = 366,286,702,137,998.88
  5. Step 5: Solve for x
    x = 366,286,702,137,998.88/21,587,670.20
  6. Step 6: Final answer
    x = 16,967,403.09

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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.