Home / 18,618,996.81-27,928,215-8,376,623.70

Finding the Fourth Proportional to 18,618,996.81, 27,928,215 and 8,376,623.70

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Solution

The fourth proportional to 18,618,996.81, 27,928,215 and 8,376,623.70 is: 12,564,809.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,618,996.81 : 27,928,215 = 8,376,623.70 : x
  2. Step 2: Convert to fraction form
    18,618,996.81/27,928,215 = 8,376,623.70/x
  3. Step 3: Cross multiply
    18,618,996.81x = 27,928,215 × 8,376,623.70
  4. Step 4: Simplify right side
    18,618,996.81x = 233,944,147,667,695.50
  5. Step 5: Solve for x
    x = 233,944,147,667,695.50/18,618,996.81
  6. Step 6: Final answer
    x = 12,564,809.48

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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.