Home / 8,436,728.20-12,659,699.32-3,578,278.97

Finding the Fourth Proportional to 8,436,728.20, 12,659,699.32 and 3,578,278.97

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Solution

The fourth proportional to 8,436,728.20, 12,659,699.32 and 3,578,278.97 is: 5,369,372.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,436,728.20 : 12,659,699.32 = 3,578,278.97 : x
  2. Step 2: Convert to fraction form
    8,436,728.20/12,659,699.32 = 3,578,278.97/x
  3. Step 3: Cross multiply
    8,436,728.20x = 12,659,699.32 × 3,578,278.97
  4. Step 4: Simplify right side
    8,436,728.20x = 45,299,935,865,982.86
  5. Step 5: Solve for x
    x = 45,299,935,865,982.86/8,436,728.20
  6. Step 6: Final answer
    x = 5,369,372.44

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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.