Home / 8,436,738.20-12,659,714.32-3,578,289

Finding the Fourth Proportional to 8,436,738.20, 12,659,714.32 and 3,578,289

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Solution

The fourth proportional to 8,436,738.20, 12,659,714.32 and 3,578,289 is: 5,369,387.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,436,738.20 : 12,659,714.32 = 3,578,289 : x
  2. Step 2: Convert to fraction form
    8,436,738.20/12,659,714.32 = 3,578,289/x
  3. Step 3: Cross multiply
    8,436,738.20x = 12,659,714.32 × 3,578,289
  4. Step 4: Simplify right side
    8,436,738.20x = 45,300,116,494,398.48
  5. Step 5: Solve for x
    x = 45,300,116,494,398.48/8,436,738.20
  6. Step 6: Final answer
    x = 5,369,387.48

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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.