Home / 12,115,252.20-18,155,163.60-10,308,352.80

Finding the Fourth Proportional to 12,115,252.20, 18,155,163.60 and 10,308,352.80

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Solution

The fourth proportional to 12,115,252.20, 18,155,163.60 and 10,308,352.80 is: 15,447,456.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,115,252.20 : 18,155,163.60 = 10,308,352.80 : x
  2. Step 2: Convert to fraction form
    12,115,252.20/18,155,163.60 = 10,308,352.80/x
  3. Step 3: Cross multiply
    12,115,252.20x = 18,155,163.60 × 10,308,352.80
  4. Step 4: Simplify right side
    12,115,252.20x = 187,149,831,530,518.09
  5. Step 5: Solve for x
    x = 187,149,831,530,518.09/12,115,252.20
  6. Step 6: Final answer
    x = 15,447,456.52

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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.