Finding the Fourth Proportional to 194,305,317.12, 291,161,396.93 and 115,366,377.57
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Solution
The fourth proportional to 194,305,317.12, 291,161,396.93 and 115,366,377.57 is: 172,873,476.39
Step by Step Solution
- Step 1: Write the proportion equation
194,305,317.12 : 291,161,396.93 = 115,366,377.57 : x - Step 2: Convert to fraction form
194,305,317.12/291,161,396.93 = 115,366,377.57/x - Step 3: Cross multiply
194,305,317.12x = 291,161,396.93 × 115,366,377.57 - Step 4: Simplify right side
194,305,317.12x = 33,590,235,651,458,188 - Step 5: Solve for x
x = 33,590,235,651,458,188/194,305,317.12 - Step 6: Final answer
x = 172,873,476.39
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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.