Finding the Fourth Proportional to 18,102,401.36, 27,161,121.72 and 7,327,319.12
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Solution
The fourth proportional to 18,102,401.36, 27,161,121.72 and 7,327,319.12 is: 10,994,022.43
Step by Step Solution
- Step 1: Write the proportion equation
18,102,401.36 : 27,161,121.72 = 7,327,319.12 : x - Step 2: Convert to fraction form
18,102,401.36/27,161,121.72 = 7,327,319.12/x - Step 3: Cross multiply
18,102,401.36x = 27,161,121.72 × 7,327,319.12 - Step 4: Simplify right side
18,102,401.36x = 199,018,206,499,603.28 - Step 5: Solve for x
x = 199,018,206,499,603.28/18,102,401.36 - Step 6: Final answer
x = 10,994,022.43
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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.