Home / 13,609,778.60-20,413,989.66-5,089,488.68

Finding the Fourth Proportional to 13,609,778.60, 20,413,989.66 and 5,089,488.68

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Solution

The fourth proportional to 13,609,778.60, 20,413,989.66 and 5,089,488.68 is: 7,633,979.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,609,778.60 : 20,413,989.66 = 5,089,488.68 : x
  2. Step 2: Convert to fraction form
    13,609,778.60/20,413,989.66 = 5,089,488.68/x
  3. Step 3: Cross multiply
    13,609,778.60x = 20,413,989.66 × 5,089,488.68
  4. Step 4: Simplify right side
    13,609,778.60x = 103,896,769,288,207.05
  5. Step 5: Solve for x
    x = 103,896,769,288,207.05/13,609,778.60
  6. Step 6: Final answer
    x = 7,633,979.39

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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.