Home / 401,277,400,893.55-601,972,644,161.10-128,910,320,867.43

Finding the Fourth Proportional to 401,277,400,893.55, 601,972,644,161.10 and 128,910,320,867.43

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Solution

The fourth proportional to 401,277,400,893.55, 601,972,644,161.10 and 128,910,320,867.43 is: 193,383,645,676.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    401,277,400,893.55 : 601,972,644,161.10 = 128,910,320,867.43 : x
  2. Step 2: Convert to fraction form
    401,277,400,893.55/601,972,644,161.10 = 128,910,320,867.43/x
  3. Step 3: Cross multiply
    401,277,400,893.55x = 601,972,644,161.10 × 128,910,320,867.43
  4. Step 4: Simplify right side
    401,277,400,893.55x = 77,600,486,712,222,660,165,632
  5. Step 5: Solve for x
    x = 77,600,486,712,222,660,165,632/401,277,400,893.55
  6. Step 6: Final answer
    x = 193,383,645,676.10

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.