Finding the Fourth Proportional to 18,149,090.72, 25,045,448.67 and 9,889,250.99
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Solution
The fourth proportional to 18,149,090.72, 25,045,448.67 and 9,889,250.99 is: 13,647,004.79
Step by Step Solution
- Step 1: Write the proportion equation
18,149,090.72 : 25,045,448.67 = 9,889,250.99 : x - Step 2: Convert to fraction form
18,149,090.72/25,045,448.67 = 9,889,250.99/x - Step 3: Cross multiply
18,149,090.72x = 25,045,448.67 × 9,889,250.99 - Step 4: Simplify right side
18,149,090.72x = 247,680,728,054,791.72 - Step 5: Solve for x
x = 247,680,728,054,791.72/18,149,090.72 - Step 6: Final answer
x = 13,647,004.79
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.