Finding the Fourth Proportional to 19,815,578.88, 29,723,394.24 and 5,438,843.52
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Solution
The fourth proportional to 19,815,578.88, 29,723,394.24 and 5,438,843.52 is: 8,158,272.39
Step by Step Solution
- Step 1: Write the proportion equation
19,815,578.88 : 29,723,394.24 = 5,438,843.52 : x - Step 2: Convert to fraction form
19,815,578.88/29,723,394.24 = 5,438,843.52/x - Step 3: Cross multiply
19,815,578.88x = 29,723,394.24 × 5,438,843.52 - Step 4: Simplify right side
19,815,578.88x = 161,660,890,154,629.31 - Step 5: Solve for x
x = 161,660,890,154,629.31/19,815,578.88 - Step 6: Final answer
x = 8,158,272.39
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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.