Home / 2,858,215.56-3,938,886.43-2,805,680.40

Finding the Fourth Proportional to 2,858,215.56, 3,938,886.43 and 2,805,680.40

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Solution

The fourth proportional to 2,858,215.56, 3,938,886.43 and 2,805,680.40 is: 3,866,488.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,858,215.56 : 3,938,886.43 = 2,805,680.40 : x
  2. Step 2: Convert to fraction form
    2,858,215.56/3,938,886.43 = 2,805,680.40/x
  3. Step 3: Cross multiply
    2,858,215.56x = 3,938,886.43 × 2,805,680.40
  4. Step 4: Simplify right side
    2,858,215.56x = 11,051,256,451,661.04
  5. Step 5: Solve for x
    x = 11,051,256,451,661.04/2,858,215.56
  6. Step 6: Final answer
    x = 3,866,488.11

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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.