Home / 12,687,414.45-17,508,649.21-6,886,196.47

Finding the Fourth Proportional to 12,687,414.45, 17,508,649.21 and 6,886,196.47

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Solution

The fourth proportional to 12,687,414.45, 17,508,649.21 and 6,886,196.47 is: 9,502,960.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,687,414.45 : 17,508,649.21 = 6,886,196.47 : x
  2. Step 2: Convert to fraction form
    12,687,414.45/17,508,649.21 = 6,886,196.47/x
  3. Step 3: Cross multiply
    12,687,414.45x = 17,508,649.21 × 6,886,196.47
  4. Step 4: Simplify right side
    12,687,414.45x = 120,567,998,427,775.48
  5. Step 5: Solve for x
    x = 120,567,998,427,775.48/12,687,414.45
  6. Step 6: Final answer
    x = 9,502,960.51

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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.