Home / 12,391,985-18,583,578.87-3,635,819.72

Finding the Fourth Proportional to 12,391,985, 18,583,578.87 and 3,635,819.72

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Solution

The fourth proportional to 12,391,985, 18,583,578.87 and 3,635,819.72 is: 5,452,439.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,391,985 : 18,583,578.87 = 3,635,819.72 : x
  2. Step 2: Convert to fraction form
    12,391,985/18,583,578.87 = 3,635,819.72/x
  3. Step 3: Cross multiply
    12,391,985x = 18,583,578.87 × 3,635,819.72
  4. Step 4: Simplify right side
    12,391,985x = 67,566,542,523,721.32
  5. Step 5: Solve for x
    x = 67,566,542,523,721.32/12,391,985
  6. Step 6: Final answer
    x = 5,452,439.02

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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.