Home / 250,140,102.97-345,193,374.87-138,638,142.43

Finding the Fourth Proportional to 250,140,102.97, 345,193,374.87 and 138,638,142.43

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Solution

The fourth proportional to 250,140,102.97, 345,193,374.87 and 138,638,142.43 is: 191,320,654.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    250,140,102.97 : 345,193,374.87 = 138,638,142.43 : x
  2. Step 2: Convert to fraction form
    250,140,102.97/345,193,374.87 = 138,638,142.43/x
  3. Step 3: Cross multiply
    250,140,102.97x = 345,193,374.87 × 138,638,142.43
  4. Step 4: Simplify right side
    250,140,102.97x = 47,856,968,271,119,448
  5. Step 5: Solve for x
    x = 47,856,968,271,119,448/250,140,102.97
  6. Step 6: Final answer
    x = 191,320,654.72

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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.