Home / 18,794,893.70-28,173,678.15-8,679,872.90

Finding the Fourth Proportional to 18,794,893.70, 28,173,678.15 and 8,679,872.90

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Solution

The fourth proportional to 18,794,893.70, 28,173,678.15 and 8,679,872.90 is: 13,011,190.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,794,893.70 : 28,173,678.15 = 8,679,872.90 : x
  2. Step 2: Convert to fraction form
    18,794,893.70/28,173,678.15 = 8,679,872.90/x
  3. Step 3: Cross multiply
    18,794,893.70x = 28,173,678.15 × 8,679,872.90
  4. Step 4: Simplify right side
    18,794,893.70x = 244,543,945,467,507.12
  5. Step 5: Solve for x
    x = 244,543,945,467,507.12/18,794,893.70
  6. Step 6: Final answer
    x = 13,011,190.67

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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.