Home / 401,277,400,891.88-601,972,644,158.64-128,910,320,865.74

Finding the Fourth Proportional to 401,277,400,891.88, 601,972,644,158.64 and 128,910,320,865.74

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Solution

The fourth proportional to 401,277,400,891.88, 601,972,644,158.64 and 128,910,320,865.74 is: 193,383,645,673.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    401,277,400,891.88 : 601,972,644,158.64 = 128,910,320,865.74 : x
  2. Step 2: Convert to fraction form
    401,277,400,891.88/601,972,644,158.64 = 128,910,320,865.74/x
  3. Step 3: Cross multiply
    401,277,400,891.88x = 601,972,644,158.64 × 128,910,320,865.74
  4. Step 4: Simplify right side
    401,277,400,891.88x = 77,600,486,710,888,217,182,208
  5. Step 5: Solve for x
    x = 77,600,486,710,888,217,182,208/401,277,400,891.88
  6. Step 6: Final answer
    x = 193,383,645,673.57

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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.