Finding the Fourth Proportional to 490,942,390.72, 677,514,862.74 and 267,938,375.62
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Solution
The fourth proportional to 490,942,390.72, 677,514,862.74 and 267,938,375.62 is: 369,762,797.45
Step by Step Solution
- Step 1: Write the proportion equation
490,942,390.72 : 677,514,862.74 = 267,938,375.62 : x - Step 2: Convert to fraction form
490,942,390.72/677,514,862.74 = 267,938,375.62/x - Step 3: Cross multiply
490,942,390.72x = 677,514,862.74 × 267,938,375.62 - Step 4: Simplify right side
490,942,390.72x = 181,532,231,780,962,880 - Step 5: Solve for x
x = 181,532,231,780,962,880/490,942,390.72 - Step 6: Final answer
x = 369,762,797.45
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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.