Home / 19,765,638.63-27,276,859.82-11,388,378.51

Finding the Fourth Proportional to 19,765,638.63, 27,276,859.82 and 11,388,378.51

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Solution

The fourth proportional to 19,765,638.63, 27,276,859.82 and 11,388,378.51 is: 15,716,122.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,765,638.63 : 27,276,859.82 = 11,388,378.51 : x
  2. Step 2: Convert to fraction form
    19,765,638.63/27,276,859.82 = 11,388,378.51/x
  3. Step 3: Cross multiply
    19,765,638.63x = 27,276,859.82 × 11,388,378.51
  4. Step 4: Simplify right side
    19,765,638.63x = 310,639,204,222,841.44
  5. Step 5: Solve for x
    x = 310,639,204,222,841.44/19,765,638.63
  6. Step 6: Final answer
    x = 15,716,122.81

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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.