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Finding the Fourth Proportional to 3,878,951.22, 5,352,746.49 and 2,225,013.03

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Solution

The fourth proportional to 3,878,951.22, 5,352,746.49 and 2,225,013.03 is: 3,070,399.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,878,951.22 : 5,352,746.49 = 2,225,013.03 : x
  2. Step 2: Convert to fraction form
    3,878,951.22/5,352,746.49 = 2,225,013.03/x
  3. Step 3: Cross multiply
    3,878,951.22x = 5,352,746.49 × 2,225,013.03
  4. Step 4: Simplify right side
    3,878,951.22x = 11,909,930,686,536.76
  5. Step 5: Solve for x
    x = 11,909,930,686,536.76/3,878,951.22
  6. Step 6: Final answer
    x = 3,070,399.71

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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.