Home / 20,143,885.60-30,215,790.60-6,311,903.20

Finding the Fourth Proportional to 20,143,885.60, 30,215,790.60 and 6,311,903.20

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Solution

The fourth proportional to 20,143,885.60, 30,215,790.60 and 6,311,903.20 is: 9,467,842.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,143,885.60 : 30,215,790.60 = 6,311,903.20 : x
  2. Step 2: Convert to fraction form
    20,143,885.60/30,215,790.60 = 6,311,903.20/x
  3. Step 3: Cross multiply
    20,143,885.60x = 30,215,790.60 × 6,311,903.20
  4. Step 4: Simplify right side
    20,143,885.60x = 190,719,145,378,669.94
  5. Step 5: Solve for x
    x = 190,719,145,378,669.94/20,143,885.60
  6. Step 6: Final answer
    x = 9,467,842.96

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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.