Home / 13,689,395.25-20,554,278.62-7,635,954.21

Finding the Fourth Proportional to 13,689,395.25, 20,554,278.62 and 7,635,954.21

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Solution

The fourth proportional to 13,689,395.25, 20,554,278.62 and 7,635,954.21 is: 11,465,190.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,689,395.25 : 20,554,278.62 = 7,635,954.21 : x
  2. Step 2: Convert to fraction form
    13,689,395.25/20,554,278.62 = 7,635,954.21/x
  3. Step 3: Cross multiply
    13,689,395.25x = 20,554,278.62 × 7,635,954.21
  4. Step 4: Simplify right side
    13,689,395.25x = 156,951,530,323,722.22
  5. Step 5: Solve for x
    x = 156,951,530,323,722.22/13,689,395.25
  6. Step 6: Final answer
    x = 11,465,190.93

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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.