Home / 29,720,876.80-41,019,293.13-18,125,166.80

Finding the Fourth Proportional to 29,720,876.80, 41,019,293.13 and 18,125,166.80

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Solution

The fourth proportional to 29,720,876.80, 41,019,293.13 and 18,125,166.80 is: 25,015,464.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,720,876.80 : 41,019,293.13 = 18,125,166.80 : x
  2. Step 2: Convert to fraction form
    29,720,876.80/41,019,293.13 = 18,125,166.80/x
  3. Step 3: Cross multiply
    29,720,876.80x = 41,019,293.13 × 18,125,166.80
  4. Step 4: Simplify right side
    29,720,876.80x = 743,481,529,999,344.12
  5. Step 5: Solve for x
    x = 743,481,529,999,344.12/29,720,876.80
  6. Step 6: Final answer
    x = 25,015,464.21

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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.