Finding the Fourth Proportional to 7,891,387.74, 11,837,540.84 and 2,212,054.92
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Solution
The fourth proportional to 7,891,387.74, 11,837,540.84 and 2,212,054.92 is: 3,318,211.11
Step by Step Solution
- Step 1: Write the proportion equation
7,891,387.74 : 11,837,540.84 = 2,212,054.92 : x - Step 2: Convert to fraction form
7,891,387.74/11,837,540.84 = 2,212,054.92/x - Step 3: Cross multiply
7,891,387.74x = 11,837,540.84 × 2,212,054.92 - Step 4: Simplify right side
7,891,387.74x = 26,185,290,444,762.66 - Step 5: Solve for x
x = 26,185,290,444,762.66/7,891,387.74 - Step 6: Final answer
x = 3,318,211.11
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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.