Finding the Fourth Proportional to 13,153,142.21, 19,729,722.89 and 3,568,519.94
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Solution
The fourth proportional to 13,153,142.21, 19,729,722.89 and 3,568,519.94 is: 5,352,782.50
Step by Step Solution
- Step 1: Write the proportion equation
13,153,142.21 : 19,729,722.89 = 3,568,519.94 : x - Step 2: Convert to fraction form
13,153,142.21/19,729,722.89 = 3,568,519.94/x - Step 3: Cross multiply
13,153,142.21x = 19,729,722.89 × 3,568,519.94 - Step 4: Simplify right side
13,153,142.21x = 70,405,909,453,912.11 - Step 5: Solve for x
x = 70,405,909,453,912.11/13,153,142.21 - Step 6: Final answer
x = 5,352,782.50
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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.