Home / 18,823,766.71-28,236,947.17-7,882,940.51

Finding the Fourth Proportional to 18,823,766.71, 28,236,947.17 and 7,882,940.51

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Solution

The fourth proportional to 18,823,766.71, 28,236,947.17 and 7,882,940.51 is: 11,824,953.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,823,766.71 : 28,236,947.17 = 7,882,940.51 : x
  2. Step 2: Convert to fraction form
    18,823,766.71/28,236,947.17 = 7,882,940.51/x
  3. Step 3: Cross multiply
    18,823,766.71x = 28,236,947.17 × 7,882,940.51
  4. Step 4: Simplify right side
    18,823,766.71x = 222,590,174,776,007.88
  5. Step 5: Solve for x
    x = 222,590,174,776,007.88/18,823,766.71
  6. Step 6: Final answer
    x = 11,824,953.97

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.