Home / 13,653,198.78-20,479,657.89-7,892,266.76

Finding the Fourth Proportional to 13,653,198.78, 20,479,657.89 and 7,892,266.76

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Solution

The fourth proportional to 13,653,198.78, 20,479,657.89 and 7,892,266.76 is: 11,838,319.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,653,198.78 : 20,479,657.89 = 7,892,266.76 : x
  2. Step 2: Convert to fraction form
    13,653,198.78/20,479,657.89 = 7,892,266.76/x
  3. Step 3: Cross multiply
    13,653,198.78x = 20,479,657.89 × 7,892,266.76
  4. Step 4: Simplify right side
    13,653,198.78x = 161,630,923,221,418.75
  5. Step 5: Solve for x
    x = 161,630,923,221,418.75/13,653,198.78
  6. Step 6: Final answer
    x = 11,838,319.05

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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.