Home / 20,392,286.10-28,142,097.31-11,099,406.98

Finding the Fourth Proportional to 20,392,286.10, 28,142,097.31 and 11,099,406.98

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Solution

The fourth proportional to 20,392,286.10, 28,142,097.31 and 11,099,406.98 is: 15,317,585.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,392,286.10 : 28,142,097.31 = 11,099,406.98 : x
  2. Step 2: Convert to fraction form
    20,392,286.10/28,142,097.31 = 11,099,406.98/x
  3. Step 3: Cross multiply
    20,392,286.10x = 28,142,097.31 × 11,099,406.98
  4. Step 4: Simplify right side
    20,392,286.10x = 312,360,591,314,453.25
  5. Step 5: Solve for x
    x = 312,360,591,314,453.25/20,392,286.10
  6. Step 6: Final answer
    x = 15,317,585.77

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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.