Home / 20,260,562.90-30,365,039.55-8,279,762.90

Finding the Fourth Proportional to 20,260,562.90, 30,365,039.55 and 8,279,762.90

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Solution

The fourth proportional to 20,260,562.90, 30,365,039.55 and 8,279,762.90 is: 12,409,098.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,260,562.90 : 30,365,039.55 = 8,279,762.90 : x
  2. Step 2: Convert to fraction form
    20,260,562.90/30,365,039.55 = 8,279,762.90/x
  3. Step 3: Cross multiply
    20,260,562.90x = 30,365,039.55 × 8,279,762.90
  4. Step 4: Simplify right side
    20,260,562.90x = 251,415,327,923,122.72
  5. Step 5: Solve for x
    x = 251,415,327,923,122.72/20,260,562.90
  6. Step 6: Final answer
    x = 12,409,098.86

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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.