Home / 20,131,232.60-30,188,975.70-7,345,155.80

Finding the Fourth Proportional to 20,131,232.60, 30,188,975.70 and 7,345,155.80

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Solution

The fourth proportional to 20,131,232.60, 30,188,975.70 and 7,345,155.80 is: 11,014,861.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,131,232.60 : 30,188,975.70 = 7,345,155.80 : x
  2. Step 2: Convert to fraction form
    20,131,232.60/30,188,975.70 = 7,345,155.80/x
  3. Step 3: Cross multiply
    20,131,232.60x = 30,188,975.70 × 7,345,155.80
  4. Step 4: Simplify right side
    20,131,232.60x = 221,742,729,958,914.06
  5. Step 5: Solve for x
    x = 221,742,729,958,914.06/20,131,232.60
  6. Step 6: Final answer
    x = 11,014,861.06

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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.