Finding the Fourth Proportional to 7,821,497.60, 10,795,179.84 and 5,100,519.68
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Solution
The fourth proportional to 7,821,497.60, 10,795,179.84 and 5,100,519.68 is: 7,039,703.91
Step by Step Solution
- Step 1: Write the proportion equation
7,821,497.60 : 10,795,179.84 = 5,100,519.68 : x - Step 2: Convert to fraction form
7,821,497.60/10,795,179.84 = 5,100,519.68/x - Step 3: Cross multiply
7,821,497.60x = 10,795,179.84 × 5,100,519.68 - Step 4: Simplify right side
7,821,497.60x = 55,061,027,223,059.25 - Step 5: Solve for x
x = 55,061,027,223,059.25/7,821,497.60 - Step 6: Final answer
x = 7,039,703.91
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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.