Finding the Fourth Proportional to 7,990,554.26, 11,019,611.07 and 5,236,241.36
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Solution
The fourth proportional to 7,990,554.26, 11,019,611.07 and 5,236,241.36 is: 7,221,194.09
Step by Step Solution
- Step 1: Write the proportion equation
7,990,554.26 : 11,019,611.07 = 5,236,241.36 : x - Step 2: Convert to fraction form
7,990,554.26/11,019,611.07 = 5,236,241.36/x - Step 3: Cross multiply
7,990,554.26x = 11,019,611.07 × 5,236,241.36 - Step 4: Simplify right side
7,990,554.26x = 57,701,343,200,749.80 - Step 5: Solve for x
x = 57,701,343,200,749.80/7,990,554.26 - Step 6: Final answer
x = 7,221,194.09
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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.