Home / 401,277,400,893.88-601,972,644,161.64-128,910,320,867.74

Finding the Fourth Proportional to 401,277,400,893.88, 601,972,644,161.64 and 128,910,320,867.74

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Solution

The fourth proportional to 401,277,400,893.88, 601,972,644,161.64 and 128,910,320,867.74 is: 193,383,645,676.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    401,277,400,893.88 : 601,972,644,161.64 = 128,910,320,867.74 : x
  2. Step 2: Convert to fraction form
    401,277,400,893.88/601,972,644,161.64 = 128,910,320,867.74/x
  3. Step 3: Cross multiply
    401,277,400,893.88x = 601,972,644,161.64 × 128,910,320,867.74
  4. Step 4: Simplify right side
    401,277,400,893.88x = 77,600,486,712,478,898,585,600
  5. Step 5: Solve for x
    x = 77,600,486,712,478,898,585,600/401,277,400,893.88
  6. Step 6: Final answer
    x = 193,383,645,676.58

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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.