Home / 18,618,999.84-27,928,219.47-8,376,626.72

Finding the Fourth Proportional to 18,618,999.84, 27,928,219.47 and 8,376,626.72

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Solution

The fourth proportional to 18,618,999.84, 27,928,219.47 and 8,376,626.72 is: 12,564,813.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,618,999.84 : 27,928,219.47 = 8,376,626.72 : x
  2. Step 2: Convert to fraction form
    18,618,999.84/27,928,219.47 = 8,376,626.72/x
  3. Step 3: Cross multiply
    18,618,999.84x = 27,928,219.47 × 8,376,626.72
  4. Step 4: Simplify right side
    18,618,999.84x = 233,944,269,314,785.12
  5. Step 5: Solve for x
    x = 233,944,269,314,785.12/18,618,999.84
  6. Step 6: Final answer
    x = 12,564,813.97

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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.