Finding the Fourth Proportional to 18,925,245.60, 28,390,229.04 and 7,409,224.80
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Solution
The fourth proportional to 18,925,245.60, 28,390,229.04 and 7,409,224.80 is: 11,114,761.39
Step by Step Solution
- Step 1: Write the proportion equation
18,925,245.60 : 28,390,229.04 = 7,409,224.80 : x - Step 2: Convert to fraction form
18,925,245.60/28,390,229.04 = 7,409,224.80/x - Step 3: Cross multiply
18,925,245.60x = 28,390,229.04 × 7,409,224.80 - Step 4: Simplify right side
18,925,245.60x = 210,349,589,080,848.19 - Step 5: Solve for x
x = 210,349,589,080,848.19/18,925,245.60 - Step 6: Final answer
x = 11,114,761.39
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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.