Home / 18,171,943.17-25,077,360.03-9,912,182.97

Finding the Fourth Proportional to 18,171,943.17, 25,077,360.03 and 9,912,182.97

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Solution

The fourth proportional to 18,171,943.17, 25,077,360.03 and 9,912,182.97 is: 13,678,855.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,171,943.17 : 25,077,360.03 = 9,912,182.97 : x
  2. Step 2: Convert to fraction form
    18,171,943.17/25,077,360.03 = 9,912,182.97/x
  3. Step 3: Cross multiply
    18,171,943.17x = 25,077,360.03 × 9,912,182.97
  4. Step 4: Simplify right side
    18,171,943.17x = 248,571,381,021,924.72
  5. Step 5: Solve for x
    x = 248,571,381,021,924.72/18,171,943.17
  6. Step 6: Final answer
    x = 13,678,855.29

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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.