Home / 18,772,131-25,905,540.78-10,187,427

Finding the Fourth Proportional to 18,772,131, 25,905,540.78 and 10,187,427

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Solution

The fourth proportional to 18,772,131, 25,905,540.78 and 10,187,427 is: 14,058,649.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,772,131 : 25,905,540.78 = 10,187,427 : x
  2. Step 2: Convert to fraction form
    18,772,131/25,905,540.78 = 10,187,427/x
  3. Step 3: Cross multiply
    18,772,131x = 25,905,540.78 × 10,187,427
  4. Step 4: Simplify right side
    18,772,131x = 263,910,805,591,773.06
  5. Step 5: Solve for x
    x = 263,910,805,591,773.06/18,772,131
  6. Step 6: Final answer
    x = 14,058,649.26

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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.