Finding the Fourth Proportional to 20,468,433.60, 30,702,589.92 and 8,335,039.68
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Solution
The fourth proportional to 20,468,433.60, 30,702,589.92 and 8,335,039.68 is: 12,502,534.89
Step by Step Solution
- Step 1: Write the proportion equation
20,468,433.60 : 30,702,589.92 = 8,335,039.68 : x - Step 2: Convert to fraction form
20,468,433.60/30,702,589.92 = 8,335,039.68/x - Step 3: Cross multiply
20,468,433.60x = 30,702,589.92 × 8,335,039.68 - Step 4: Simplify right side
20,468,433.60x = 255,907,305,261,968.03 - Step 5: Solve for x
x = 255,907,305,261,968.03/20,468,433.60 - Step 6: Final answer
x = 12,502,534.89
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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.