Finding the Fourth Proportional to 144,415,907.40, 199,072,816.68 and 88,557,743.28
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Solution
The fourth proportional to 144,415,907.40, 199,072,816.68 and 88,557,743.28 is: 122,074,082.50
Step by Step Solution
- Step 1: Write the proportion equation
144,415,907.40 : 199,072,816.68 = 88,557,743.28 : x - Step 2: Convert to fraction form
144,415,907.40/199,072,816.68 = 88,557,743.28/x - Step 3: Cross multiply
144,415,907.40x = 199,072,816.68 × 88,557,743.28 - Step 4: Simplify right side
144,415,907.40x = 17,629,439,393,573,942 - Step 5: Solve for x
x = 17,629,439,393,573,942/144,415,907.40 - Step 6: Final answer
x = 122,074,082.50
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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.