Home / 117,212,473.50-161,753,214.87-65,704,249.50

Finding the Fourth Proportional to 117,212,473.50, 161,753,214.87 and 65,704,249.50

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Solution

The fourth proportional to 117,212,473.50, 161,753,214.87 and 65,704,249.50 is: 90,671,865.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,212,473.50 : 161,753,214.87 = 65,704,249.50 : x
  2. Step 2: Convert to fraction form
    117,212,473.50/161,753,214.87 = 65,704,249.50/x
  3. Step 3: Cross multiply
    117,212,473.50x = 161,753,214.87 × 65,704,249.50
  4. Step 4: Simplify right side
    117,212,473.50x = 10,627,873,587,245,590
  5. Step 5: Solve for x
    x = 10,627,873,587,245,590/117,212,473.50
  6. Step 6: Final answer
    x = 90,671,865.12

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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.