Finding the Fourth Proportional to 276,659,802.70, 414,989,704.05 and 85,183,578.70
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Solution
The fourth proportional to 276,659,802.70, 414,989,704.05 and 85,183,578.70 is: 127,775,368.05
Step by Step Solution
- Step 1: Write the proportion equation
276,659,802.70 : 414,989,704.05 = 85,183,578.70 : x - Step 2: Convert to fraction form
276,659,802.70/414,989,704.05 = 85,183,578.70/x - Step 3: Cross multiply
276,659,802.70x = 414,989,704.05 × 85,183,578.70 - Step 4: Simplify right side
276,659,802.70x = 35,350,308,114,632,884 - Step 5: Solve for x
x = 35,350,308,114,632,884/276,659,802.70 - Step 6: Final answer
x = 127,775,368.05
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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.