Home / 13,328,972.29-18,394,006.78-7,448,606.51

Finding the Fourth Proportional to 13,328,972.29, 18,394,006.78 and 7,448,606.51

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Solution

The fourth proportional to 13,328,972.29, 18,394,006.78 and 7,448,606.51 is: 10,279,090.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,328,972.29 : 18,394,006.78 = 7,448,606.51 : x
  2. Step 2: Convert to fraction form
    13,328,972.29/18,394,006.78 = 7,448,606.51/x
  3. Step 3: Cross multiply
    13,328,972.29x = 18,394,006.78 × 7,448,606.51
  4. Step 4: Simplify right side
    13,328,972.29x = 137,009,718,644,715.44
  5. Step 5: Solve for x
    x = 137,009,718,644,715.44/13,328,972.29
  6. Step 6: Final answer
    x = 10,279,090.97

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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.