Finding the Fourth Proportional to 18,253,553.48, 25,190,202.10 and 9,993,477.96
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Solution
The fourth proportional to 18,253,553.48, 25,190,202.10 and 9,993,477.96 is: 13,791,162.90
Step by Step Solution
- Step 1: Write the proportion equation
18,253,553.48 : 25,190,202.10 = 9,993,477.96 : x - Step 2: Convert to fraction form
18,253,553.48/25,190,202.10 = 9,993,477.96/x - Step 3: Cross multiply
18,253,553.48x = 25,190,202.10 × 9,993,477.96 - Step 4: Simplify right side
18,253,553.48x = 251,737,729,494,295.75 - Step 5: Solve for x
x = 251,737,729,494,295.75/18,253,553.48 - Step 6: Final answer
x = 13,791,162.90
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1.5x scale
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.