Home / 401,277,400,881.59-601,972,644,143.30-128,910,320,855.53

Finding the Fourth Proportional to 401,277,400,881.59, 601,972,644,143.30 and 128,910,320,855.53

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Solution

The fourth proportional to 401,277,400,881.59, 601,972,644,143.30 and 128,910,320,855.53 is: 193,383,645,658.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    401,277,400,881.59 : 601,972,644,143.30 = 128,910,320,855.53 : x
  2. Step 2: Convert to fraction form
    401,277,400,881.59/601,972,644,143.30 = 128,910,320,855.53/x
  3. Step 3: Cross multiply
    401,277,400,881.59x = 601,972,644,143.30 × 128,910,320,855.53
  4. Step 4: Simplify right side
    401,277,400,881.59x = 77,600,486,702,764,588,531,712
  5. Step 5: Solve for x
    x = 77,600,486,702,764,588,531,712/401,277,400,881.59
  6. Step 6: Final answer
    x = 193,383,645,658.29

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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.