Home / 11,220,778.26-15,477,493.68-7,781,764.50

Finding the Fourth Proportional to 11,220,778.26, 15,477,493.68 and 7,781,764.50

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Solution

The fourth proportional to 11,220,778.26, 15,477,493.68 and 7,781,764.50 is: 10,733,855.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,220,778.26 : 15,477,493.68 = 7,781,764.50 : x
  2. Step 2: Convert to fraction form
    11,220,778.26/15,477,493.68 = 7,781,764.50/x
  3. Step 3: Cross multiply
    11,220,778.26x = 15,477,493.68 × 7,781,764.50
  4. Step 4: Simplify right side
    11,220,778.26x = 120,442,210,867,998.36
  5. Step 5: Solve for x
    x = 120,442,210,867,998.36/11,220,778.26
  6. Step 6: Final answer
    x = 10,733,855.36

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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.