Home / 20,408,063.12-30,615,861.72-8,441,732.24

Finding the Fourth Proportional to 20,408,063.12, 30,615,861.72 and 8,441,732.24

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Solution

The fourth proportional to 20,408,063.12, 30,615,861.72 and 8,441,732.24 is: 12,664,156.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,408,063.12 : 30,615,861.72 = 8,441,732.24 : x
  2. Step 2: Convert to fraction form
    20,408,063.12/30,615,861.72 = 8,441,732.24/x
  3. Step 3: Cross multiply
    20,408,063.12x = 30,615,861.72 × 8,441,732.24
  4. Step 4: Simplify right side
    20,408,063.12x = 258,450,906,937,105.84
  5. Step 5: Solve for x
    x = 258,450,906,937,105.84/20,408,063.12
  6. Step 6: Final answer
    x = 12,664,156.58

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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.