Finding the Fourth Proportional to 222,481,142.57, 306,995,757.08 and 121,983,132.80
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Solution
The fourth proportional to 222,481,142.57, 306,995,757.08 and 121,983,132.80 is: 168,321,250.84
Step by Step Solution
- Step 1: Write the proportion equation
222,481,142.57 : 306,995,757.08 = 121,983,132.80 : x - Step 2: Convert to fraction form
222,481,142.57/306,995,757.08 = 121,983,132.80/x - Step 3: Cross multiply
222,481,142.57x = 306,995,757.08 × 121,983,132.80 - Step 4: Simplify right side
222,481,142.57x = 37,448,304,205,083,752 - Step 5: Solve for x
x = 37,448,304,205,083,752/222,481,142.57 - Step 6: Final answer
x = 168,321,250.84
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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.