Home / 20,260,584.90-30,365,072.55-8,279,784.90

Finding the Fourth Proportional to 20,260,584.90, 30,365,072.55 and 8,279,784.90

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Solution

The fourth proportional to 20,260,584.90, 30,365,072.55 and 8,279,784.90 is: 12,409,131.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,260,584.90 : 30,365,072.55 = 8,279,784.90 : x
  2. Step 2: Convert to fraction form
    20,260,584.90/30,365,072.55 = 8,279,784.90/x
  3. Step 3: Cross multiply
    20,260,584.90x = 30,365,072.55 × 8,279,784.90
  4. Step 4: Simplify right side
    20,260,584.90x = 251,416,269,186,894.50
  5. Step 5: Solve for x
    x = 251,416,269,186,894.50/20,260,584.90
  6. Step 6: Final answer
    x = 12,409,131.84

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1.5x scale

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.