Finding the Fourth Proportional to 10,983,816.09, 16,478,468.37 and 7,751,664.63
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Solution
The fourth proportional to 10,983,816.09, 16,478,468.37 and 7,751,664.63 is: 11,629,433.65
Step by Step Solution
- Step 1: Write the proportion equation
10,983,816.09 : 16,478,468.37 = 7,751,664.63 : x - Step 2: Convert to fraction form
10,983,816.09/16,478,468.37 = 7,751,664.63/x - Step 3: Cross multiply
10,983,816.09x = 16,478,468.37 × 7,751,664.63 - Step 4: Simplify right side
10,983,816.09x = 127,735,560,420,302.75 - Step 5: Solve for x
x = 127,735,560,420,302.75/10,983,816.09 - Step 6: Final answer
x = 11,629,433.65
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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.