Home / 12,355,286.80-18,516,789.66-6,890,163.52

Finding the Fourth Proportional to 12,355,286.80, 18,516,789.66 and 6,890,163.52

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Solution

The fourth proportional to 12,355,286.80, 18,516,789.66 and 6,890,163.52 is: 10,326,244.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,355,286.80 : 18,516,789.66 = 6,890,163.52 : x
  2. Step 2: Convert to fraction form
    12,355,286.80/18,516,789.66 = 6,890,163.52/x
  3. Step 3: Cross multiply
    12,355,286.80x = 18,516,789.66 × 6,890,163.52
  4. Step 4: Simplify right side
    12,355,286.80x = 127,583,708,622,845.20
  5. Step 5: Solve for x
    x = 127,583,708,622,845.20/12,355,286.80
  6. Step 6: Final answer
    x = 10,326,244.20

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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.