Home / 12,298,789.60-18,456,057.60-7,181,209.60

Finding the Fourth Proportional to 12,298,789.60, 18,456,057.60 and 7,181,209.60

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Solution

The fourth proportional to 12,298,789.60, 18,456,057.60 and 7,181,209.60 is: 10,776,411.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,298,789.60 : 18,456,057.60 = 7,181,209.60 : x
  2. Step 2: Convert to fraction form
    12,298,789.60/18,456,057.60 = 7,181,209.60/x
  3. Step 3: Cross multiply
    12,298,789.60x = 18,456,057.60 × 7,181,209.60
  4. Step 4: Simplify right side
    12,298,789.60x = 132,536,818,015,272.97
  5. Step 5: Solve for x
    x = 132,536,818,015,272.97/12,298,789.60
  6. Step 6: Final answer
    x = 10,776,411.53

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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.