Home / 20,865,775.20-31,298,289.18-8,567,067.96

Finding the Fourth Proportional to 20,865,775.20, 31,298,289.18 and 8,567,067.96

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Solution

The fourth proportional to 20,865,775.20, 31,298,289.18 and 8,567,067.96 is: 12,850,448.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,865,775.20 : 31,298,289.18 = 8,567,067.96 : x
  2. Step 2: Convert to fraction form
    20,865,775.20/31,298,289.18 = 8,567,067.96/x
  3. Step 3: Cross multiply
    20,865,775.20x = 31,298,289.18 × 8,567,067.96
  4. Step 4: Simplify right side
    20,865,775.20x = 268,134,570,436,792.69
  5. Step 5: Solve for x
    x = 268,134,570,436,792.69/20,865,775.20
  6. Step 6: Final answer
    x = 12,850,448.54

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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.