Finding the Fourth Proportional to 121,392,122.20, 182,088,183.30 and 107,362,079.80
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Solution
The fourth proportional to 121,392,122.20, 182,088,183.30 and 107,362,079.80 is: 161,043,119.70
Step by Step Solution
- Step 1: Write the proportion equation
121,392,122.20 : 182,088,183.30 = 107,362,079.80 : x - Step 2: Convert to fraction form
121,392,122.20/182,088,183.30 = 107,362,079.80/x - Step 3: Cross multiply
121,392,122.20x = 182,088,183.30 × 107,362,079.80 - Step 4: Simplify right side
121,392,122.20x = 19,549,366,066,091,628 - Step 5: Solve for x
x = 19,549,366,066,091,628/121,392,122.20 - Step 6: Final answer
x = 161,043,119.70
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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.