Finding the Fourth Proportional to 5,362,208.20, 7,399,795.18 and 3,991,680.84
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Solution
The fourth proportional to 5,362,208.20, 7,399,795.18 and 3,991,680.84 is: 5,508,480.75
Step by Step Solution
- Step 1: Write the proportion equation
5,362,208.20 : 7,399,795.18 = 3,991,680.84 : x - Step 2: Convert to fraction form
5,362,208.20/7,399,795.18 = 3,991,680.84/x - Step 3: Cross multiply
5,362,208.20x = 7,399,795.18 × 3,991,680.84 - Step 4: Simplify right side
5,362,208.20x = 29,537,620,639,930.35 - Step 5: Solve for x
x = 29,537,620,639,930.35/5,362,208.20 - Step 6: Final answer
x = 5,508,480.75
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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.