Home / 117,101,752,797.40-161,540,945,007.60-76,480,442,120.72

Finding the Fourth Proportional to 117,101,752,797.40, 161,540,945,007.60 and 76,480,442,120.72

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Solution

The fourth proportional to 117,101,752,797.40, 161,540,945,007.60 and 76,480,442,120.72 is: 105,504,167,099.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,101,752,797.40 : 161,540,945,007.60 = 76,480,442,120.72 : x
  2. Step 2: Convert to fraction form
    117,101,752,797.40/161,540,945,007.60 = 76,480,442,120.72/x
  3. Step 3: Cross multiply
    117,101,752,797.40x = 161,540,945,007.60 × 76,480,442,120.72
  4. Step 4: Simplify right side
    117,101,752,797.40x = 12,354,722,894,780,164,997,120
  5. Step 5: Solve for x
    x = 12,354,722,894,780,164,997,120/117,101,752,797.40
  6. Step 6: Final answer
    x = 105,504,167,099.49

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.