Finding the Fourth Proportional to 26,431,268.73, 36,407,189.34 and 18,682,990.17
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Solution
The fourth proportional to 26,431,268.73, 36,407,189.34 and 18,682,990.17 is: 25,734,487.72
Step by Step Solution
- Step 1: Write the proportion equation
26,431,268.73 : 36,407,189.34 = 18,682,990.17 : x - Step 2: Convert to fraction form
26,431,268.73/36,407,189.34 = 18,682,990.17/x - Step 3: Cross multiply
26,431,268.73x = 36,407,189.34 × 18,682,990.17 - Step 4: Simplify right side
26,431,268.73x = 680,195,160,556,548.88 - Step 5: Solve for x
x = 680,195,160,556,548.88/26,431,268.73 - Step 6: Final answer
x = 25,734,487.72
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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.