Finding the Fourth Proportional to 12,252,755.32, 18,381,129.41 and 3,617,728.63
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Solution
The fourth proportional to 12,252,755.32, 18,381,129.41 and 3,617,728.63 is: 5,427,182.41
Step by Step Solution
- Step 1: Write the proportion equation
12,252,755.32 : 18,381,129.41 = 3,617,728.63 : x - Step 2: Convert to fraction form
12,252,755.32/18,381,129.41 = 3,617,728.63/x - Step 3: Cross multiply
12,252,755.32x = 18,381,129.41 × 3,617,728.63 - Step 4: Simplify right side
12,252,755.32x = 66,497,938,081,383.51 - Step 5: Solve for x
x = 66,497,938,081,383.51/12,252,755.32 - Step 6: Final answer
x = 5,427,182.41
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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.