Finding the Fourth Proportional to 30,612,375.66, 42,245,074.62 and 16,861,339.92
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Solution
The fourth proportional to 30,612,375.66, 42,245,074.62 and 16,861,339.92 is: 23,268,647.00
Step by Step Solution
- Step 1: Write the proportion equation
30,612,375.66 : 42,245,074.62 = 16,861,339.92 : x - Step 2: Convert to fraction form
30,612,375.66/42,245,074.62 = 16,861,339.92/x - Step 3: Cross multiply
30,612,375.66x = 42,245,074.62 × 16,861,339.92 - Step 4: Simplify right side
30,612,375.66x = 712,308,563,113,584.88 - Step 5: Solve for x
x = 712,308,563,113,584.88/30,612,375.66 - Step 6: Final answer
x = 23,268,647.00
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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.