Home / 210,026,781.80-315,040,172.70-181,305,348.20

Finding the Fourth Proportional to 210,026,781.80, 315,040,172.70 and 181,305,348.20

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Solution

The fourth proportional to 210,026,781.80, 315,040,172.70 and 181,305,348.20 is: 271,958,022.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    210,026,781.80 : 315,040,172.70 = 181,305,348.20 : x
  2. Step 2: Convert to fraction form
    210,026,781.80/315,040,172.70 = 181,305,348.20/x
  3. Step 3: Cross multiply
    210,026,781.80x = 315,040,172.70 × 181,305,348.20
  4. Step 4: Simplify right side
    210,026,781.80x = 57,118,468,208,361,632
  5. Step 5: Solve for x
    x = 57,118,468,208,361,632/210,026,781.80
  6. Step 6: Final answer
    x = 271,958,022.30

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.