Home / 20,099,429.20-30,139,812.60-8,734,027.60

Finding the Fourth Proportional to 20,099,429.20, 30,139,812.60 and 8,734,027.60

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Solution

The fourth proportional to 20,099,429.20, 30,139,812.60 and 8,734,027.60 is: 13,096,986.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,099,429.20 : 30,139,812.60 = 8,734,027.60 : x
  2. Step 2: Convert to fraction form
    20,099,429.20/30,139,812.60 = 8,734,027.60/x
  3. Step 3: Cross multiply
    20,099,429.20x = 30,139,812.60 × 8,734,027.60
  4. Step 4: Simplify right side
    20,099,429.20x = 263,241,955,107,227.75
  5. Step 5: Solve for x
    x = 263,241,955,107,227.75/20,099,429.20
  6. Step 6: Final answer
    x = 13,096,986.61

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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.