Finding the Fourth Proportional to 220,199,217.40, 303,883,675.68 and 121,088,090.44
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Solution
The fourth proportional to 220,199,217.40, 303,883,675.68 and 121,088,090.44 is: 167,106,379.57
Step by Step Solution
- Step 1: Write the proportion equation
220,199,217.40 : 303,883,675.68 = 121,088,090.44 : x - Step 2: Convert to fraction form
220,199,217.40/303,883,675.68 = 121,088,090.44/x - Step 3: Cross multiply
220,199,217.40x = 303,883,675.68 × 121,088,090.44 - Step 4: Simplify right side
220,199,217.40x = 36,796,694,003,979,472 - Step 5: Solve for x
x = 36,796,694,003,979,472/220,199,217.40 - Step 6: Final answer
x = 167,106,379.57
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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.