Home / 7,965,869.85-11,959,983.68-4,078,103.81

Finding the Fourth Proportional to 7,965,869.85, 11,959,983.68 and 4,078,103.81

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Solution

The fourth proportional to 7,965,869.85, 11,959,983.68 and 4,078,103.81 is: 6,122,878.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,965,869.85 : 11,959,983.68 = 4,078,103.81 : x
  2. Step 2: Convert to fraction form
    7,965,869.85/11,959,983.68 = 4,078,103.81/x
  3. Step 3: Cross multiply
    7,965,869.85x = 11,959,983.68 × 4,078,103.81
  4. Step 4: Simplify right side
    7,965,869.85x = 48,774,054,932,755.39
  5. Step 5: Solve for x
    x = 48,774,054,932,755.39/7,965,869.85
  6. Step 6: Final answer
    x = 6,122,878.71

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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.