Home / 20,241,921.84-30,359,500.20-8,879,319.60

Finding the Fourth Proportional to 20,241,921.84, 30,359,500.20 and 8,879,319.60

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Solution

The fourth proportional to 20,241,921.84, 30,359,500.20 and 8,879,319.60 is: 13,317,495.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,241,921.84 : 30,359,500.20 = 8,879,319.60 : x
  2. Step 2: Convert to fraction form
    20,241,921.84/30,359,500.20 = 8,879,319.60/x
  3. Step 3: Cross multiply
    20,241,921.84x = 30,359,500.20 × 8,879,319.60
  4. Step 4: Simplify right side
    20,241,921.84x = 269,571,705,172,063.91
  5. Step 5: Solve for x
    x = 269,571,705,172,063.91/20,241,921.84
  6. Step 6: Final answer
    x = 13,317,495.61

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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.