Finding the Fourth Proportional to 5,290,679.26, 7,301,195.70 and 2,876,231.26
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Solution
The fourth proportional to 5,290,679.26, 7,301,195.70 and 2,876,231.26 is: 3,969,230.84
Step by Step Solution
- Step 1: Write the proportion equation
5,290,679.26 : 7,301,195.70 = 2,876,231.26 : x - Step 2: Convert to fraction form
5,290,679.26/7,301,195.70 = 2,876,231.26/x - Step 3: Cross multiply
5,290,679.26x = 7,301,195.70 × 2,876,231.26 - Step 4: Simplify right side
5,290,679.26x = 20,999,927,307,717.58 - Step 5: Solve for x
x = 20,999,927,307,717.58/5,290,679.26 - Step 6: Final answer
x = 3,969,230.84
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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.