Finding the Fourth Proportional to 39,198,157.62, 54,093,174.21 and 21,794,368.02
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Solution
The fourth proportional to 39,198,157.62, 54,093,174.21 and 21,794,368.02 is: 30,076,070.35
Step by Step Solution
- Step 1: Write the proportion equation
39,198,157.62 : 54,093,174.21 = 21,794,368.02 : x - Step 2: Convert to fraction form
39,198,157.62/54,093,174.21 = 21,794,368.02/x - Step 3: Cross multiply
39,198,157.62x = 54,093,174.21 × 21,794,368.02 - Step 4: Simplify right side
39,198,157.62x = 1,178,926,546,102,712.75 - Step 5: Solve for x
x = 1,178,926,546,102,712.75/39,198,157.62 - Step 6: Final answer
x = 30,076,070.35
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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.