Finding the Fourth Proportional to 15,135,161.34, 20,886,517.16 and 8,259,643.41
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Solution
The fourth proportional to 15,135,161.34, 20,886,517.16 and 8,259,643.41 is: 11,398,304.90
Step by Step Solution
- Step 1: Write the proportion equation
15,135,161.34 : 20,886,517.16 = 8,259,643.41 : x - Step 2: Convert to fraction form
15,135,161.34/20,886,517.16 = 8,259,643.41/x - Step 3: Cross multiply
15,135,161.34x = 20,886,517.16 × 8,259,643.41 - Step 4: Simplify right side
15,135,161.34x = 172,515,183,753,023.03 - Step 5: Solve for x
x = 172,515,183,753,023.03/15,135,161.34 - Step 6: Final answer
x = 11,398,304.90
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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.