Finding the Fourth Proportional to 128,716,883.20, 193,075,324.80 and 59,629,553.20
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Solution
The fourth proportional to 128,716,883.20, 193,075,324.80 and 59,629,553.20 is: 89,444,329.80
Step by Step Solution
- Step 1: Write the proportion equation
128,716,883.20 : 193,075,324.80 = 59,629,553.20 : x - Step 2: Convert to fraction form
128,716,883.20/193,075,324.80 = 59,629,553.20/x - Step 3: Cross multiply
128,716,883.20x = 193,075,324.80 × 59,629,553.20 - Step 4: Simplify right side
128,716,883.20x = 11,512,995,351,768,880 - Step 5: Solve for x
x = 11,512,995,351,768,880/128,716,883.20 - Step 6: Final answer
x = 89,444,329.80
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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.