Home / 51,284,540.70-76,861,492.65-20,958,140.70

Finding the Fourth Proportional to 51,284,540.70, 76,861,492.65 and 20,958,140.70

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Solution

The fourth proportional to 51,284,540.70, 76,861,492.65 and 20,958,140.70 is: 31,410,517.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,284,540.70 : 76,861,492.65 = 20,958,140.70 : x
  2. Step 2: Convert to fraction form
    51,284,540.70/76,861,492.65 = 20,958,140.70/x
  3. Step 3: Cross multiply
    51,284,540.70x = 76,861,492.65 × 20,958,140.70
  4. Step 4: Simplify right side
    51,284,540.70x = 1,610,873,977,370,716
  5. Step 5: Solve for x
    x = 1,610,873,977,370,716/51,284,540.70
  6. Step 6: Final answer
    x = 31,410,517.78

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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.