Finding the Fourth Proportional to 18,476,778.55, 25,497,114.92 and 10,635,957.09
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Solution
The fourth proportional to 18,476,778.55, 25,497,114.92 and 10,635,957.09 is: 14,677,137.55
Step by Step Solution
- Step 1: Write the proportion equation
18,476,778.55 : 25,497,114.92 = 10,635,957.09 : x - Step 2: Convert to fraction form
18,476,778.55/25,497,114.92 = 10,635,957.09/x - Step 3: Cross multiply
18,476,778.55x = 25,497,114.92 × 10,635,957.09 - Step 4: Simplify right side
18,476,778.55x = 271,186,220,207,918.81 - Step 5: Solve for x
x = 271,186,220,207,918.81/18,476,778.55 - Step 6: Final answer
x = 14,677,137.55
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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.