Home / 3,938,342.41-5,434,778.19-2,172,310.72

Finding the Fourth Proportional to 3,938,342.41, 5,434,778.19 and 2,172,310.72

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Solution

The fourth proportional to 3,938,342.41, 5,434,778.19 and 2,172,310.72 is: 2,997,714.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,938,342.41 : 5,434,778.19 = 2,172,310.72 : x
  2. Step 2: Convert to fraction form
    3,938,342.41/5,434,778.19 = 2,172,310.72/x
  3. Step 3: Cross multiply
    3,938,342.41x = 5,434,778.19 × 2,172,310.72
  4. Step 4: Simplify right side
    3,938,342.41x = 11,806,026,917,518.41
  5. Step 5: Solve for x
    x = 11,806,026,917,518.41/3,938,342.41
  6. Step 6: Final answer
    x = 2,997,714.69

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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.