Home / 12,919,863.75-17,829,815.48-7,414,245.55

Finding the Fourth Proportional to 12,919,863.75, 17,829,815.48 and 7,414,245.55

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Solution

The fourth proportional to 12,919,863.75, 17,829,815.48 and 7,414,245.55 is: 10,231,890.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,919,863.75 : 17,829,815.48 = 7,414,245.55 : x
  2. Step 2: Convert to fraction form
    12,919,863.75/17,829,815.48 = 7,414,245.55/x
  3. Step 3: Cross multiply
    12,919,863.75x = 17,829,815.48 × 7,414,245.55
  4. Step 4: Simplify right side
    12,919,863.75x = 132,194,630,079,911.11
  5. Step 5: Solve for x
    x = 132,194,630,079,911.11/12,919,863.75
  6. Step 6: Final answer
    x = 10,231,890.42

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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.