Finding the Fourth Proportional to 5,153,812.37, 7,112,273.82 and 2,861,972.99
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Solution
The fourth proportional to 5,153,812.37, 7,112,273.82 and 2,861,972.99 is: 3,949,529.81
Step by Step Solution
- Step 1: Write the proportion equation
5,153,812.37 : 7,112,273.82 = 2,861,972.99 : x - Step 2: Convert to fraction form
5,153,812.37/7,112,273.82 = 2,861,972.99/x - Step 3: Cross multiply
5,153,812.37x = 7,112,273.82 × 2,861,972.99 - Step 4: Simplify right side
5,153,812.37x = 20,355,135,570,324.12 - Step 5: Solve for x
x = 20,355,135,570,324.12/5,153,812.37 - Step 6: Final answer
x = 3,949,529.81
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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.