Home / 13,789,578.72-20,633,979.04-8,112,476.64

Finding the Fourth Proportional to 13,789,578.72, 20,633,979.04 and 8,112,476.64

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Solution

The fourth proportional to 13,789,578.72, 20,633,979.04 and 8,112,476.64 is: 12,139,070.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,789,578.72 : 20,633,979.04 = 8,112,476.64 : x
  2. Step 2: Convert to fraction form
    13,789,578.72/20,633,979.04 = 8,112,476.64/x
  3. Step 3: Cross multiply
    13,789,578.72x = 20,633,979.04 × 8,112,476.64
  4. Step 4: Simplify right side
    13,789,578.72x = 167,392,672,952,249.62
  5. Step 5: Solve for x
    x = 167,392,672,952,249.62/13,789,578.72
  6. Step 6: Final answer
    x = 12,139,070.84

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.