Home / 144,015,127.18-198,741,481.17-77,935,628.54

Finding the Fourth Proportional to 144,015,127.18, 198,741,481.17 and 77,935,628.54

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Solution

The fourth proportional to 144,015,127.18, 198,741,481.17 and 77,935,628.54 is: 107,551,495.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    144,015,127.18 : 198,741,481.17 = 77,935,628.54 : x
  2. Step 2: Convert to fraction form
    144,015,127.18/198,741,481.17 = 77,935,628.54/x
  3. Step 3: Cross multiply
    144,015,127.18x = 198,741,481.17 × 77,935,628.54
  4. Step 4: Simplify right side
    144,015,127.18x = 15,489,042,251,954,524
  5. Step 5: Solve for x
    x = 15,489,042,251,954,524/144,015,127.18
  6. Step 6: Final answer
    x = 107,551,495.15

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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.