Home / 2,979,176.78-4,115,414.35-2,868,570.47

Finding the Fourth Proportional to 2,979,176.78, 4,115,414.35 and 2,868,570.47

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Solution

The fourth proportional to 2,979,176.78, 4,115,414.35 and 2,868,570.47 is: 3,962,623.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,979,176.78 : 4,115,414.35 = 2,868,570.47 : x
  2. Step 2: Convert to fraction form
    2,979,176.78/4,115,414.35 = 2,868,570.47/x
  3. Step 3: Cross multiply
    2,979,176.78x = 4,115,414.35 × 2,868,570.47
  4. Step 4: Simplify right side
    2,979,176.78x = 11,805,356,090,098.49
  5. Step 5: Solve for x
    x = 11,805,356,090,098.49/2,979,176.78
  6. Step 6: Final answer
    x = 3,962,623.55

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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.