Finding the Fourth Proportional to 21,517,760.92, 29,694,318.24 and 11,728,204.60
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Solution
The fourth proportional to 21,517,760.92, 29,694,318.24 and 11,728,204.60 is: 16,184,817.79
Step by Step Solution
- Step 1: Write the proportion equation
21,517,760.92 : 29,694,318.24 = 11,728,204.60 : x - Step 2: Convert to fraction form
21,517,760.92/29,694,318.24 = 11,728,204.60/x - Step 3: Cross multiply
21,517,760.92x = 29,694,318.24 × 11,728,204.60 - Step 4: Simplify right side
21,517,760.92x = 348,261,039,776,231.88 - Step 5: Solve for x
x = 348,261,039,776,231.88/21,517,760.92 - Step 6: Final answer
x = 16,184,817.79
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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.