Finding the Fourth Proportional to 122,393,082.20, 183,589,623.30 and 115,212,723.80
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Solution
The fourth proportional to 122,393,082.20, 183,589,623.30 and 115,212,723.80 is: 172,819,085.70
Step by Step Solution
- Step 1: Write the proportion equation
122,393,082.20 : 183,589,623.30 = 115,212,723.80 : x - Step 2: Convert to fraction form
122,393,082.20/183,589,623.30 = 115,212,723.80/x - Step 3: Cross multiply
122,393,082.20x = 183,589,623.30 × 115,212,723.80 - Step 4: Simplify right side
122,393,082.20x = 21,151,860,561,808,944 - Step 5: Solve for x
x = 21,151,860,561,808,944/122,393,082.20 - Step 6: Final answer
x = 172,819,085.70
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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.