Home / 117,212,474-161,753,215.56-65,704,250

Finding the Fourth Proportional to 117,212,474, 161,753,215.56 and 65,704,250

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Solution

The fourth proportional to 117,212,474, 161,753,215.56 and 65,704,250 is: 90,671,865.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,212,474 : 161,753,215.56 = 65,704,250 : x
  2. Step 2: Convert to fraction form
    117,212,474/161,753,215.56 = 65,704,250/x
  3. Step 3: Cross multiply
    117,212,474x = 161,753,215.56 × 65,704,250
  4. Step 4: Simplify right side
    117,212,474x = 10,627,873,713,458,130
  5. Step 5: Solve for x
    x = 10,627,873,713,458,130/117,212,474
  6. Step 6: Final answer
    x = 90,671,865.81

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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.