Home / 51,989,576.22-71,746,709.85-28,469,100.78

Finding the Fourth Proportional to 51,989,576.22, 71,746,709.85 and 28,469,100.78

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Solution

The fourth proportional to 51,989,576.22, 71,746,709.85 and 28,469,100.78 is: 39,287,958.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,989,576.22 : 71,746,709.85 = 28,469,100.78 : x
  2. Step 2: Convert to fraction form
    51,989,576.22/71,746,709.85 = 28,469,100.78/x
  3. Step 3: Cross multiply
    51,989,576.22x = 71,746,709.85 × 28,469,100.78
  4. Step 4: Simplify right side
    51,989,576.22x = 2,042,564,313,353,068.50
  5. Step 5: Solve for x
    x = 2,042,564,313,353,068.50/51,989,576.22
  6. Step 6: Final answer
    x = 39,287,958.51

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.