Finding the Fourth Proportional to 18,809,035.13, 28,213,902.75 and 5,346,213.05
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Solution
The fourth proportional to 18,809,035.13, 28,213,902.75 and 5,346,213.05 is: 8,019,419.07
Step by Step Solution
- Step 1: Write the proportion equation
18,809,035.13 : 28,213,902.75 = 5,346,213.05 : x - Step 2: Convert to fraction form
18,809,035.13/28,213,902.75 = 5,346,213.05/x - Step 3: Cross multiply
18,809,035.13x = 28,213,902.75 × 5,346,213.05 - Step 4: Simplify right side
18,809,035.13x = 150,837,534,932,411.38 - Step 5: Solve for x
x = 150,837,534,932,411.38/18,809,035.13 - Step 6: Final answer
x = 8,019,419.07
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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.