Home / 3,179,916.78-4,387,886.59-2,149,666.17

Finding the Fourth Proportional to 3,179,916.78, 4,387,886.59 and 2,149,666.17

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Solution

The fourth proportional to 3,179,916.78, 4,387,886.59 and 2,149,666.17 is: 2,966,269.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,179,916.78 : 4,387,886.59 = 2,149,666.17 : x
  2. Step 2: Convert to fraction form
    3,179,916.78/4,387,886.59 = 2,149,666.17/x
  3. Step 3: Cross multiply
    3,179,916.78x = 4,387,886.59 × 2,149,666.17
  4. Step 4: Simplify right side
    3,179,916.78x = 9,432,491,360,319.66
  5. Step 5: Solve for x
    x = 9,432,491,360,319.66/3,179,916.78
  6. Step 6: Final answer
    x = 2,966,269.88

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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.