Finding the Fourth Proportional to 18,102,403.61, 27,161,125.10 and 7,327,321.37
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Solution
The fourth proportional to 18,102,403.61, 27,161,125.10 and 7,327,321.37 is: 10,994,025.80
Step by Step Solution
- Step 1: Write the proportion equation
18,102,403.61 : 27,161,125.10 = 7,327,321.37 : x - Step 2: Convert to fraction form
18,102,403.61/27,161,125.10 = 7,327,321.37/x - Step 3: Cross multiply
18,102,403.61x = 27,161,125.10 × 7,327,321.37 - Step 4: Simplify right side
18,102,403.61x = 199,018,292,341,836.78 - Step 5: Solve for x
x = 199,018,292,341,836.78/18,102,403.61 - Step 6: Final answer
x = 10,994,025.80
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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.