Finding the Fourth Proportional to 363,505,946.40, 545,244,922.80 and 121,168,850.40
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Solution
The fourth proportional to 363,505,946.40, 545,244,922.80 and 121,168,850.40 is: 181,748,609.99
Step by Step Solution
- Step 1: Write the proportion equation
363,505,946.40 : 545,244,922.80 = 121,168,850.40 : x - Step 2: Convert to fraction form
363,505,946.40/545,244,922.80 = 121,168,850.40/x - Step 3: Cross multiply
363,505,946.40x = 545,244,922.80 × 121,168,850.40 - Step 4: Simplify right side
363,505,946.40x = 66,066,700,482,112,744 - Step 5: Solve for x
x = 66,066,700,482,112,744/363,505,946.40 - Step 6: Final answer
x = 181,748,609.99
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.