Home / 5,165,940.89-7,128,819.54-2,842,616.15

Finding the Fourth Proportional to 5,165,940.89, 7,128,819.54 and 2,842,616.15

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Solution

The fourth proportional to 5,165,940.89, 7,128,819.54 and 2,842,616.15 is: 3,922,711.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,165,940.89 : 7,128,819.54 = 2,842,616.15 : x
  2. Step 2: Convert to fraction form
    5,165,940.89/7,128,819.54 = 2,842,616.15/x
  3. Step 3: Cross multiply
    5,165,940.89x = 7,128,819.54 × 2,842,616.15
  4. Step 4: Simplify right side
    5,165,940.89x = 20,264,497,554,839.57
  5. Step 5: Solve for x
    x = 20,264,497,554,839.57/5,165,940.89
  6. Step 6: Final answer
    x = 3,922,711.85

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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.