Home / 12,481,920.20-18,694,886.70-10,242,432.20

Finding the Fourth Proportional to 12,481,920.20, 18,694,886.70 and 10,242,432.20

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Solution

The fourth proportional to 12,481,920.20, 18,694,886.70 and 10,242,432.20 is: 15,340,677.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,481,920.20 : 18,694,886.70 = 10,242,432.20 : x
  2. Step 2: Convert to fraction form
    12,481,920.20/18,694,886.70 = 10,242,432.20/x
  3. Step 3: Cross multiply
    12,481,920.20x = 18,694,886.70 × 10,242,432.20
  4. Step 4: Simplify right side
    12,481,920.20x = 191,481,109,511,431.72
  5. Step 5: Solve for x
    x = 191,481,109,511,431.72/12,481,920.20
  6. Step 6: Final answer
    x = 15,340,677.27

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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.