Home / 13,493,691.51-20,134,553.97-12,670,121.58

Finding the Fourth Proportional to 13,493,691.51, 20,134,553.97 and 12,670,121.58

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Solution

The fourth proportional to 13,493,691.51, 20,134,553.97 and 12,670,121.58 is: 18,905,667.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,493,691.51 : 20,134,553.97 = 12,670,121.58 : x
  2. Step 2: Convert to fraction form
    13,493,691.51/20,134,553.97 = 12,670,121.58/x
  3. Step 3: Cross multiply
    13,493,691.51x = 20,134,553.97 × 12,670,121.58
  4. Step 4: Simplify right side
    13,493,691.51x = 255,107,246,758,971.66
  5. Step 5: Solve for x
    x = 255,107,246,758,971.66/13,493,691.51
  6. Step 6: Final answer
    x = 18,905,667.63

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.