Finding the Fourth Proportional to 13,389,740.29, 18,479,861.44 and 8,165,779.14
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Solution
The fourth proportional to 13,389,740.29, 18,479,861.44 and 8,165,779.14 is: 11,270,007.02
Step by Step Solution
- Step 1: Write the proportion equation
13,389,740.29 : 18,479,861.44 = 8,165,779.14 : x - Step 2: Convert to fraction form
13,389,740.29/18,479,861.44 = 8,165,779.14/x - Step 3: Cross multiply
13,389,740.29x = 18,479,861.44 × 8,165,779.14 - Step 4: Simplify right side
13,389,740.29x = 150,902,467,001,778.16 - Step 5: Solve for x
x = 150,902,467,001,778.16/13,389,740.29 - Step 6: Final answer
x = 11,270,007.02
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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.