Finding the Fourth Proportional to 7,622,394.15, 11,431,181.79 and 2,503,983.09
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Solution
The fourth proportional to 7,622,394.15, 11,431,181.79 and 2,503,983.09 is: 3,755,183.13
Step by Step Solution
- Step 1: Write the proportion equation
7,622,394.15 : 11,431,181.79 = 2,503,983.09 : x - Step 2: Convert to fraction form
7,622,394.15/11,431,181.79 = 2,503,983.09/x - Step 3: Cross multiply
7,622,394.15x = 11,431,181.79 × 2,503,983.09 - Step 4: Simplify right side
7,622,394.15x = 28,623,485,900,875.93 - Step 5: Solve for x
x = 28,623,485,900,875.93/7,622,394.15 - Step 6: Final answer
x = 3,755,183.13
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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.