Home / 117,123,976.92-161,536,843.16-102,964,889.17

Finding the Fourth Proportional to 117,123,976.92, 161,536,843.16 and 102,964,889.17

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Solution

The fourth proportional to 117,123,976.92, 161,536,843.16 and 102,964,889.17 is: 142,008,695.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,123,976.92 : 161,536,843.16 = 102,964,889.17 : x
  2. Step 2: Convert to fraction form
    117,123,976.92/161,536,843.16 = 102,964,889.17/x
  3. Step 3: Cross multiply
    117,123,976.92x = 161,536,843.16 × 102,964,889.17
  4. Step 4: Simplify right side
    117,123,976.92x = 16,632,623,153,493,982
  5. Step 5: Solve for x
    x = 16,632,623,153,493,982/117,123,976.92
  6. Step 6: Final answer
    x = 142,008,695.32

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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.