Finding the Fourth Proportional to 209,674,161.02, 289,351,216.15 and 115,586,240.99
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Solution
The fourth proportional to 209,674,161.02, 289,351,216.15 and 115,586,240.99 is: 159,509,494.33
Step by Step Solution
- Step 1: Write the proportion equation
209,674,161.02 : 289,351,216.15 = 115,586,240.99 : x - Step 2: Convert to fraction form
209,674,161.02/289,351,216.15 = 115,586,240.99/x - Step 3: Cross multiply
209,674,161.02x = 289,351,216.15 × 115,586,240.99 - Step 4: Simplify right side
209,674,161.02x = 33,445,019,398,927,756 - Step 5: Solve for x
x = 33,445,019,398,927,756/209,674,161.02 - Step 6: Final answer
x = 159,509,494.33
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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.