Finding the Fourth Proportional to 3,843,868.86, 5,304,649.74 and 2,125,100.09
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Solution
The fourth proportional to 3,843,868.86, 5,304,649.74 and 2,125,100.09 is: 2,932,699.33
Step by Step Solution
- Step 1: Write the proportion equation
3,843,868.86 : 5,304,649.74 = 2,125,100.09 : x - Step 2: Convert to fraction form
3,843,868.86/5,304,649.74 = 2,125,100.09/x - Step 3: Cross multiply
3,843,868.86x = 5,304,649.74 × 2,125,100.09 - Step 4: Simplify right side
3,843,868.86x = 11,272,911,626,296.28 - Step 5: Solve for x
x = 11,272,911,626,296.28/3,843,868.86 - Step 6: Final answer
x = 2,932,699.33
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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.