Home / 3,963,478.78-5,469,628.71-2,152,642.78

Finding the Fourth Proportional to 3,963,478.78, 5,469,628.71 and 2,152,642.78

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Solution

The fourth proportional to 3,963,478.78, 5,469,628.71 and 2,152,642.78 is: 2,970,662.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,963,478.78 : 5,469,628.71 = 2,152,642.78 : x
  2. Step 2: Convert to fraction form
    3,963,478.78/5,469,628.71 = 2,152,642.78/x
  3. Step 3: Cross multiply
    3,963,478.78x = 5,469,628.71 × 2,152,642.78
  4. Step 4: Simplify right side
    3,963,478.78x = 11,774,156,751,862.21
  5. Step 5: Solve for x
    x = 11,774,156,751,862.21/3,963,478.78
  6. Step 6: Final answer
    x = 2,970,662.24

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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.