Home / 221,188,109.16-305,238,958.34-122,068,137

Finding the Fourth Proportional to 221,188,109.16, 305,238,958.34 and 122,068,137

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Solution

The fourth proportional to 221,188,109.16, 305,238,958.34 and 122,068,137 is: 168,453,680.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    221,188,109.16 : 305,238,958.34 = 122,068,137 : x
  2. Step 2: Convert to fraction form
    221,188,109.16/305,238,958.34 = 122,068,137/x
  3. Step 3: Cross multiply
    221,188,109.16x = 305,238,958.34 × 122,068,137
  4. Step 4: Simplify right side
    221,188,109.16x = 37,259,950,984,384,408
  5. Step 5: Solve for x
    x = 37,259,950,984,384,408/221,188,109.16
  6. Step 6: Final answer
    x = 168,453,680.11

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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.