Finding the Fourth Proportional to 397,601,593.99, 548,694,011.60 and 218,989,531.64
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Solution
The fourth proportional to 397,601,593.99, 548,694,011.60 and 218,989,531.64 is: 302,207,653.17
Step by Step Solution
- Step 1: Write the proportion equation
397,601,593.99 : 548,694,011.60 = 218,989,531.64 : x - Step 2: Convert to fraction form
397,601,593.99/548,694,011.60 = 218,989,531.64/x - Step 3: Cross multiply
397,601,593.99x = 548,694,011.60 × 218,989,531.64 - Step 4: Simplify right side
397,601,593.99x = 120,158,244,615,054,736 - Step 5: Solve for x
x = 120,158,244,615,054,736/397,601,593.99 - Step 6: Final answer
x = 302,207,653.17
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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.