Finding the Fourth Proportional to 3,515,514.14, 4,851,540.18 and 1,987,530.14
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Solution
The fourth proportional to 3,515,514.14, 4,851,540.18 and 1,987,530.14 is: 2,742,865.47
Step by Step Solution
- Step 1: Write the proportion equation
3,515,514.14 : 4,851,540.18 = 1,987,530.14 : x - Step 2: Convert to fraction form
3,515,514.14/4,851,540.18 = 1,987,530.14/x - Step 3: Cross multiply
3,515,514.14x = 4,851,540.18 × 1,987,530.14 - Step 4: Simplify right side
3,515,514.14x = 9,642,582,333,171.02 - Step 5: Solve for x
x = 9,642,582,333,171.02/3,515,514.14 - Step 6: Final answer
x = 2,742,865.47
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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.