Finding the Fourth Proportional to 141,062,772.36, 194,643,268.92 and 81,529,612.21
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Solution
The fourth proportional to 141,062,772.36, 194,643,268.92 and 81,529,612.21 is: 112,497,365.31
Step by Step Solution
- Step 1: Write the proportion equation
141,062,772.36 : 194,643,268.92 = 81,529,612.21 : x - Step 2: Convert to fraction form
141,062,772.36/194,643,268.92 = 81,529,612.21/x - Step 3: Cross multiply
141,062,772.36x = 194,643,268.92 × 81,529,612.21 - Step 4: Simplify right side
141,062,772.36x = 15,869,190,233,767,042 - Step 5: Solve for x
x = 15,869,190,233,767,042/141,062,772.36 - Step 6: Final answer
x = 112,497,365.31
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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.