Finding the Fourth Proportional to 373,192,651.13, 515,016,786.28 and 203,657,813.09
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Solution
The fourth proportional to 373,192,651.13, 515,016,786.28 and 203,657,813.09 is: 281,053,745.51
Step by Step Solution
- Step 1: Write the proportion equation
373,192,651.13 : 515,016,786.28 = 203,657,813.09 : x - Step 2: Convert to fraction form
373,192,651.13/515,016,786.28 = 203,657,813.09/x - Step 3: Cross multiply
373,192,651.13x = 515,016,786.28 × 203,657,813.09 - Step 4: Simplify right side
373,192,651.13x = 104,887,192,397,656,720 - Step 5: Solve for x
x = 104,887,192,397,656,720/373,192,651.13 - Step 6: Final answer
x = 281,053,745.51
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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.