Home / 12,251,520.70-18,349,287.45-7,212,672.70

Finding the Fourth Proportional to 12,251,520.70, 18,349,287.45 and 7,212,672.70

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Solution

The fourth proportional to 12,251,520.70, 18,349,287.45 and 7,212,672.70 is: 10,802,528.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,251,520.70 : 18,349,287.45 = 7,212,672.70 : x
  2. Step 2: Convert to fraction form
    12,251,520.70/18,349,287.45 = 7,212,672.70/x
  3. Step 3: Cross multiply
    12,251,520.70x = 18,349,287.45 × 7,212,672.70
  4. Step 4: Simplify right side
    12,251,520.70x = 132,347,404,655,067.61
  5. Step 5: Solve for x
    x = 132,347,404,655,067.61/12,251,520.70
  6. Step 6: Final answer
    x = 10,802,528.76

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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.