Home / 132,987,212,484.21-199,799,055,188.10-85,273,703,458.47

Finding the Fourth Proportional to 132,987,212,484.21, 199,799,055,188.10 and 85,273,703,458.47

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Solution

The fourth proportional to 132,987,212,484.21, 199,799,055,188.10 and 85,273,703,458.47 is: 128,114,613,917.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    132,987,212,484.21 : 199,799,055,188.10 = 85,273,703,458.47 : x
  2. Step 2: Convert to fraction form
    132,987,212,484.21/199,799,055,188.10 = 85,273,703,458.47/x
  3. Step 3: Cross multiply
    132,987,212,484.21x = 199,799,055,188.10 × 85,273,703,458.47
  4. Step 4: Simplify right side
    132,987,212,484.21x = 17,037,605,383,392,521,617,408
  5. Step 5: Solve for x
    x = 17,037,605,383,392,521,617,408/132,987,212,484.21
  6. Step 6: Final answer
    x = 128,114,613,917.60

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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.