Home / 12,390,191.87-18,578,906.19-5,560,910.55

Finding the Fourth Proportional to 12,390,191.87, 18,578,906.19 and 5,560,910.55

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Solution

The fourth proportional to 12,390,191.87, 18,578,906.19 and 5,560,910.55 is: 8,338,501.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,390,191.87 : 18,578,906.19 = 5,560,910.55 : x
  2. Step 2: Convert to fraction form
    12,390,191.87/18,578,906.19 = 5,560,910.55/x
  3. Step 3: Cross multiply
    12,390,191.87x = 18,578,906.19 × 5,560,910.55
  4. Step 4: Simplify right side
    12,390,191.87x = 103,315,635,439,431.31
  5. Step 5: Solve for x
    x = 103,315,635,439,431.31/12,390,191.87
  6. Step 6: Final answer
    x = 8,338,501.66

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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.