Home / 18,405,778.52-25,445,890.86-13,814,128.28

Finding the Fourth Proportional to 18,405,778.52, 25,445,890.86 and 13,814,128.28

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Solution

The fourth proportional to 18,405,778.52, 25,445,890.86 and 13,814,128.28 is: 19,097,958.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,405,778.52 : 25,445,890.86 = 13,814,128.28 : x
  2. Step 2: Convert to fraction form
    18,405,778.52/25,445,890.86 = 13,814,128.28/x
  3. Step 3: Cross multiply
    18,405,778.52x = 25,445,890.86 × 13,814,128.28
  4. Step 4: Simplify right side
    18,405,778.52x = 351,512,800,538,919.50
  5. Step 5: Solve for x
    x = 351,512,800,538,919.50/18,405,778.52
  6. Step 6: Final answer
    x = 19,097,958.84

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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.