Home / 12,822,968.22-19,203,922.89-7,420,229.34

Finding the Fourth Proportional to 12,822,968.22, 19,203,922.89 and 7,420,229.34

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Solution

The fourth proportional to 12,822,968.22, 19,203,922.89 and 7,420,229.34 is: 11,112,677.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,822,968.22 : 19,203,922.89 = 7,420,229.34 : x
  2. Step 2: Convert to fraction form
    12,822,968.22/19,203,922.89 = 7,420,229.34/x
  3. Step 3: Cross multiply
    12,822,968.22x = 19,203,922.89 × 7,420,229.34
  4. Step 4: Simplify right side
    12,822,968.22x = 142,497,512,071,475.59
  5. Step 5: Solve for x
    x = 142,497,512,071,475.59/12,822,968.22
  6. Step 6: Final answer
    x = 11,112,677.63

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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.