Finding the Fourth Proportional to 218,512,997.40, 327,769,496.10 and 149,638,243.80
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Solution
The fourth proportional to 218,512,997.40, 327,769,496.10 and 149,638,243.80 is: 224,457,365.70
Step by Step Solution
- Step 1: Write the proportion equation
218,512,997.40 : 327,769,496.10 = 149,638,243.80 : x - Step 2: Convert to fraction form
218,512,997.40/327,769,496.10 = 149,638,243.80/x - Step 3: Cross multiply
218,512,997.40x = 327,769,496.10 × 149,638,243.80 - Step 4: Simplify right side
218,512,997.40x = 49,046,851,767,614,960 - Step 5: Solve for x
x = 49,046,851,767,614,960/218,512,997.40 - Step 6: Final answer
x = 224,457,365.70
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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.