Finding the Fourth Proportional to 3,851,678.48, 5,315,251.19 and 2,132,762.09
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Solution
The fourth proportional to 3,851,678.48, 5,315,251.19 and 2,132,762.09 is: 2,943,175.62
Step by Step Solution
- Step 1: Write the proportion equation
3,851,678.48 : 5,315,251.19 = 2,132,762.09 : x - Step 2: Convert to fraction form
3,851,678.48/5,315,251.19 = 2,132,762.09/x - Step 3: Cross multiply
3,851,678.48x = 5,315,251.19 × 2,132,762.09 - Step 4: Simplify right side
3,851,678.48x = 11,336,166,199,619.32 - Step 5: Solve for x
x = 11,336,166,199,619.32/3,851,678.48 - Step 6: Final answer
x = 2,943,175.62
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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.