Finding the Fourth Proportional to 18,686,611.20, 27,976,772.70 and 14,399,653.80
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Solution
The fourth proportional to 18,686,611.20, 27,976,772.70 and 14,399,653.80 is: 21,558,528.56
Step by Step Solution
- Step 1: Write the proportion equation
18,686,611.20 : 27,976,772.70 = 14,399,653.80 : x - Step 2: Convert to fraction form
18,686,611.20/27,976,772.70 = 14,399,653.80/x - Step 3: Cross multiply
18,686,611.20x = 27,976,772.70 × 14,399,653.80 - Step 4: Simplify right side
18,686,611.20x = 402,855,841,321,291.25 - Step 5: Solve for x
x = 402,855,841,321,291.25/18,686,611.20 - Step 6: Final answer
x = 21,558,528.56
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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.