Home / 8,378,108.78-12,586,081.03-4,968,631.66

Finding the Fourth Proportional to 8,378,108.78, 12,586,081.03 and 4,968,631.66

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Solution

The fourth proportional to 8,378,108.78, 12,586,081.03 and 4,968,631.66 is: 7,464,166.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,378,108.78 : 12,586,081.03 = 4,968,631.66 : x
  2. Step 2: Convert to fraction form
    8,378,108.78/12,586,081.03 = 4,968,631.66/x
  3. Step 3: Cross multiply
    8,378,108.78x = 12,586,081.03 × 4,968,631.66
  4. Step 4: Simplify right side
    8,378,108.78x = 62,535,600,680,983.41
  5. Step 5: Solve for x
    x = 62,535,600,680,983.41/8,378,108.78
  6. Step 6: Final answer
    x = 7,464,166.71

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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.