Home / 10,889,961.36-16,324,847.28-4,821,459.72

Finding the Fourth Proportional to 10,889,961.36, 16,324,847.28 and 4,821,459.72

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Solution

The fourth proportional to 10,889,961.36, 16,324,847.28 and 4,821,459.72 is: 7,227,720.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,889,961.36 : 16,324,847.28 = 4,821,459.72 : x
  2. Step 2: Convert to fraction form
    10,889,961.36/16,324,847.28 = 4,821,459.72/x
  3. Step 3: Cross multiply
    10,889,961.36x = 16,324,847.28 × 4,821,459.72
  4. Step 4: Simplify right side
    10,889,961.36x = 78,709,593,595,671.55
  5. Step 5: Solve for x
    x = 78,709,593,595,671.55/10,889,961.36
  6. Step 6: Final answer
    x = 7,227,720.19

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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.