Home / 15,790,884.69-21,779,421.89-13,589,408.88

Finding the Fourth Proportional to 15,790,884.69, 21,779,421.89 and 13,589,408.88

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Solution

The fourth proportional to 15,790,884.69, 21,779,421.89 and 13,589,408.88 is: 18,743,058.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,790,884.69 : 21,779,421.89 = 13,589,408.88 : x
  2. Step 2: Convert to fraction form
    15,790,884.69/21,779,421.89 = 13,589,408.88/x
  3. Step 3: Cross multiply
    15,790,884.69x = 21,779,421.89 × 13,589,408.88
  4. Step 4: Simplify right side
    15,790,884.69x = 295,969,469,165,285.38
  5. Step 5: Solve for x
    x = 295,969,469,165,285.38/15,790,884.69
  6. Step 6: Final answer
    x = 18,743,058.09

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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.