Finding the Fourth Proportional to 2,642,729.62, 3,638,190.78 and 2,370,326.12
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Solution
The fourth proportional to 2,642,729.62, 3,638,190.78 and 2,370,326.12 is: 3,263,178.56
Step by Step Solution
- Step 1: Write the proportion equation
2,642,729.62 : 3,638,190.78 = 2,370,326.12 : x - Step 2: Convert to fraction form
2,642,729.62/3,638,190.78 = 2,370,326.12/x - Step 3: Cross multiply
2,642,729.62x = 3,638,190.78 × 2,370,326.12 - Step 4: Simplify right side
2,642,729.62x = 8,623,698,635,377.17 - Step 5: Solve for x
x = 8,623,698,635,377.17/2,642,729.62 - Step 6: Final answer
x = 3,263,178.56
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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.