Finding the Fourth Proportional to 5,528,091.76, 7,628,431.49 and 3,047,203.94
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Solution
The fourth proportional to 5,528,091.76, 7,628,431.49 and 3,047,203.94 is: 4,204,956.70
Step by Step Solution
- Step 1: Write the proportion equation
5,528,091.76 : 7,628,431.49 = 3,047,203.94 : x - Step 2: Convert to fraction form
5,528,091.76/7,628,431.49 = 3,047,203.94/x - Step 3: Cross multiply
5,528,091.76x = 7,628,431.49 × 3,047,203.94 - Step 4: Simplify right side
5,528,091.76x = 23,245,386,492,348.07 - Step 5: Solve for x
x = 23,245,386,492,348.07/5,528,091.76 - Step 6: Final answer
x = 4,204,956.70
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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.