Finding the Fourth Proportional to 326,264,163.20, 489,396,244.80 and 188,325,699.20
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Solution
The fourth proportional to 326,264,163.20, 489,396,244.80 and 188,325,699.20 is: 282,488,548.80
Step by Step Solution
- Step 1: Write the proportion equation
326,264,163.20 : 489,396,244.80 = 188,325,699.20 : x - Step 2: Convert to fraction form
326,264,163.20/489,396,244.80 = 188,325,699.20/x - Step 3: Cross multiply
326,264,163.20x = 489,396,244.80 × 188,325,699.20 - Step 4: Simplify right side
326,264,163.20x = 92,165,889,987,814,368 - Step 5: Solve for x
x = 92,165,889,987,814,368/326,264,163.20 - Step 6: Final answer
x = 282,488,548.80
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1.5x scale
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.