Home / 219,491,861.96-329,106,305.20-69,861,693.68

Finding the Fourth Proportional to 219,491,861.96, 329,106,305.20 and 69,861,693.68

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Solution

The fourth proportional to 219,491,861.96, 329,106,305.20 and 69,861,693.68 is: 104,750,689.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    219,491,861.96 : 329,106,305.20 = 69,861,693.68 : x
  2. Step 2: Convert to fraction form
    219,491,861.96/329,106,305.20 = 69,861,693.68/x
  3. Step 3: Cross multiply
    219,491,861.96x = 329,106,305.20 × 69,861,693.68
  4. Step 4: Simplify right side
    219,491,861.96x = 22,991,923,882,038,992
  5. Step 5: Solve for x
    x = 22,991,923,882,038,992/219,491,861.96
  6. Step 6: Final answer
    x = 104,750,689.51

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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.