Home / 12,298,781.60-18,456,045.60-7,181,201.60

Finding the Fourth Proportional to 12,298,781.60, 18,456,045.60 and 7,181,201.60

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Solution

The fourth proportional to 12,298,781.60, 18,456,045.60 and 7,181,201.60 is: 10,776,399.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,298,781.60 : 18,456,045.60 = 7,181,201.60 : x
  2. Step 2: Convert to fraction form
    12,298,781.60/18,456,045.60 = 7,181,201.60/x
  3. Step 3: Cross multiply
    12,298,781.60x = 18,456,045.60 × 7,181,201.60
  4. Step 4: Simplify right side
    12,298,781.60x = 132,536,584,192,392.97
  5. Step 5: Solve for x
    x = 132,536,584,192,392.97/12,298,781.60
  6. Step 6: Final answer
    x = 10,776,399.53

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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.