Finding the Fourth Proportional to 4,085,863.80, 6,128,795.70 and 3,456,007.80
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Solution
The fourth proportional to 4,085,863.80, 6,128,795.70 and 3,456,007.80 is: 5,184,011.70
Step by Step Solution
- Step 1: Write the proportion equation
4,085,863.80 : 6,128,795.70 = 3,456,007.80 : x - Step 2: Convert to fraction form
4,085,863.80/6,128,795.70 = 3,456,007.80/x - Step 3: Cross multiply
4,085,863.80x = 6,128,795.70 × 3,456,007.80 - Step 4: Simplify right side
4,085,863.80x = 21,181,165,743,806.46 - Step 5: Solve for x
x = 21,181,165,743,806.46/4,085,863.80 - Step 6: Final answer
x = 5,184,011.70
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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.