Home / 13,524,214.78-18,663,867.75-7,412,658.94

Finding the Fourth Proportional to 13,524,214.78, 18,663,867.75 and 7,412,658.94

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Solution

The fourth proportional to 13,524,214.78, 18,663,867.75 and 7,412,658.94 is: 10,229,716.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,524,214.78 : 18,663,867.75 = 7,412,658.94 : x
  2. Step 2: Convert to fraction form
    13,524,214.78/18,663,867.75 = 7,412,658.94/x
  3. Step 3: Cross multiply
    13,524,214.78x = 18,663,867.75 × 7,412,658.94
  4. Step 4: Simplify right side
    13,524,214.78x = 138,348,886,132,015.19
  5. Step 5: Solve for x
    x = 138,348,886,132,015.19/13,524,214.78
  6. Step 6: Final answer
    x = 10,229,716.73

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.