Home / 15,414,672.72-21,223,716.36-13,086,961.20

Finding the Fourth Proportional to 15,414,672.72, 21,223,716.36 and 13,086,961.20

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Solution

The fourth proportional to 15,414,672.72, 21,223,716.36 and 13,086,961.20 is: 18,018,803.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,414,672.72 : 21,223,716.36 = 13,086,961.20 : x
  2. Step 2: Convert to fraction form
    15,414,672.72/21,223,716.36 = 13,086,961.20/x
  3. Step 3: Cross multiply
    15,414,672.72x = 21,223,716.36 × 13,086,961.20
  4. Step 4: Simplify right side
    15,414,672.72x = 277,753,952,523,125.22
  5. Step 5: Solve for x
    x = 277,753,952,523,125.22/15,414,672.72
  6. Step 6: Final answer
    x = 18,018,803.10

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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.