Home / 71,529,982.53-107,295,979.83-20,412,006.81

Finding the Fourth Proportional to 71,529,982.53, 107,295,979.83 and 20,412,006.81

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Solution

The fourth proportional to 71,529,982.53, 107,295,979.83 and 20,412,006.81 is: 30,618,297.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,529,982.53 : 107,295,979.83 = 20,412,006.81 : x
  2. Step 2: Convert to fraction form
    71,529,982.53/107,295,979.83 = 20,412,006.81/x
  3. Step 3: Cross multiply
    71,529,982.53x = 107,295,979.83 × 20,412,006.81
  4. Step 4: Simplify right side
    71,529,982.53x = 2,190,126,270,975,582.50
  5. Step 5: Solve for x
    x = 2,190,126,270,975,582.50/71,529,982.53
  6. Step 6: Final answer
    x = 30,618,297.30

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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.