Home / 22,187,982.56-30,618,828.36-12,398,507.18

Finding the Fourth Proportional to 22,187,982.56, 30,618,828.36 and 12,398,507.18

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Solution

The fourth proportional to 22,187,982.56, 30,618,828.36 and 12,398,507.18 is: 17,109,611.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,187,982.56 : 30,618,828.36 = 12,398,507.18 : x
  2. Step 2: Convert to fraction form
    22,187,982.56/30,618,828.36 = 12,398,507.18/x
  3. Step 3: Cross multiply
    22,187,982.56x = 30,618,828.36 × 12,398,507.18
  4. Step 4: Simplify right side
    22,187,982.56x = 379,627,763,279,202.12
  5. Step 5: Solve for x
    x = 379,627,763,279,202.12/22,187,982.56
  6. Step 6: Final answer
    x = 17,109,611.58

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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.