Finding the Fourth Proportional to 151,432,469.62, 209,149,188.35 and 101,786,651.77
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Solution
The fourth proportional to 151,432,469.62, 209,149,188.35 and 101,786,651.77 is: 140,581,446.34
Step by Step Solution
- Step 1: Write the proportion equation
151,432,469.62 : 209,149,188.35 = 101,786,651.77 : x - Step 2: Convert to fraction form
151,432,469.62/209,149,188.35 = 101,786,651.77/x - Step 3: Cross multiply
151,432,469.62x = 209,149,188.35 × 101,786,651.77 - Step 4: Simplify right side
151,432,469.62x = 21,288,595,602,270,396 - Step 5: Solve for x
x = 21,288,595,602,270,396/151,432,469.62 - Step 6: Final answer
x = 140,581,446.34
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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.