Home / 15,196,408.12-20,971,077.15-8,227,159.12

Finding the Fourth Proportional to 15,196,408.12, 20,971,077.15 and 8,227,159.12

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Solution

The fourth proportional to 15,196,408.12, 20,971,077.15 and 8,227,159.12 is: 11,353,497.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,196,408.12 : 20,971,077.15 = 8,227,159.12 : x
  2. Step 2: Convert to fraction form
    15,196,408.12/20,971,077.15 = 8,227,159.12/x
  3. Step 3: Cross multiply
    15,196,408.12x = 20,971,077.15 × 8,227,159.12
  4. Step 4: Simplify right side
    15,196,408.12x = 172,532,388,630,846.09
  5. Step 5: Solve for x
    x = 172,532,388,630,846.09/15,196,408.12
  6. Step 6: Final answer
    x = 11,353,497.96

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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.