Home / 156,018,249.97-215,201,513.27-100,334,069.59

Finding the Fourth Proportional to 156,018,249.97, 215,201,513.27 and 100,334,069.59

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Solution

The fourth proportional to 156,018,249.97, 215,201,513.27 and 100,334,069.59 is: 138,394,345.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,018,249.97 : 215,201,513.27 = 100,334,069.59 : x
  2. Step 2: Convert to fraction form
    156,018,249.97/215,201,513.27 = 100,334,069.59/x
  3. Step 3: Cross multiply
    156,018,249.97x = 215,201,513.27 × 100,334,069.59
  4. Step 4: Simplify right side
    156,018,249.97x = 21,592,043,608,018,320
  5. Step 5: Solve for x
    x = 21,592,043,608,018,320/156,018,249.97
  6. Step 6: Final answer
    x = 138,394,345.61

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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.