Home / 20,379,618.10-30,604,856.55-10,813,680.10

Finding the Fourth Proportional to 20,379,618.10, 30,604,856.55 and 10,813,680.10

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Solution

The fourth proportional to 20,379,618.10, 30,604,856.55 and 10,813,680.10 is: 16,239,319.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,379,618.10 : 30,604,856.55 = 10,813,680.10 : x
  2. Step 2: Convert to fraction form
    20,379,618.10/30,604,856.55 = 10,813,680.10/x
  3. Step 3: Cross multiply
    20,379,618.10x = 30,604,856.55 × 10,813,680.10
  4. Step 4: Simplify right side
    20,379,618.10x = 330,951,128,238,089.62
  5. Step 5: Solve for x
    x = 330,951,128,238,089.62/20,379,618.10
  6. Step 6: Final answer
    x = 16,239,319.43

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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.