Home / 18,678,902.10-28,025,351.55-7,327,497.30

Finding the Fourth Proportional to 18,678,902.10, 28,025,351.55 and 7,327,497.30

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Solution

The fourth proportional to 18,678,902.10, 28,025,351.55 and 7,327,497.30 is: 10,993,991.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,678,902.10 : 28,025,351.55 = 7,327,497.30 : x
  2. Step 2: Convert to fraction form
    18,678,902.10/28,025,351.55 = 7,327,497.30/x
  3. Step 3: Cross multiply
    18,678,902.10x = 28,025,351.55 × 7,327,497.30
  4. Step 4: Simplify right side
    18,678,902.10x = 205,355,687,814,175.81
  5. Step 5: Solve for x
    x = 205,355,687,814,175.81/18,678,902.10
  6. Step 6: Final answer
    x = 10,993,991.33

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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.