Finding the Fourth Proportional to 699,514,391.12, 1,049,634,728.81 and 285,295,103.96
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Solution
The fourth proportional to 699,514,391.12, 1,049,634,728.81 and 285,295,103.96 is: 428,090,762.50
Step by Step Solution
- Step 1: Write the proportion equation
699,514,391.12 : 1,049,634,728.81 = 285,295,103.96 : x - Step 2: Convert to fraction form
699,514,391.12/1,049,634,728.81 = 285,295,103.96/x - Step 3: Cross multiply
699,514,391.12x = 1,049,634,728.81 × 285,295,103.96 - Step 4: Simplify right side
699,514,391.12x = 299,455,649,069,200,704 - Step 5: Solve for x
x = 299,455,649,069,200,704/699,514,391.12 - Step 6: Final answer
x = 428,090,762.50
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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.