Home / 11,871,418.55-16,382,550.38-6,438,910.55

Finding the Fourth Proportional to 11,871,418.55, 16,382,550.38 and 6,438,910.55

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Solution

The fourth proportional to 11,871,418.55, 16,382,550.38 and 6,438,910.55 is: 8,885,692.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,871,418.55 : 16,382,550.38 = 6,438,910.55 : x
  2. Step 2: Convert to fraction form
    11,871,418.55/16,382,550.38 = 6,438,910.55/x
  3. Step 3: Cross multiply
    11,871,418.55x = 16,382,550.38 × 6,438,910.55
  4. Step 4: Simplify right side
    11,871,418.55x = 105,485,776,363,581.20
  5. Step 5: Solve for x
    x = 105,485,776,363,581.20/11,871,418.55
  6. Step 6: Final answer
    x = 8,885,692.64

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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.