Finding the Fourth Proportional to 4,678,619.12, 6,456,134.04 and 2,641,629.68
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Solution
The fourth proportional to 4,678,619.12, 6,456,134.04 and 2,641,629.68 is: 3,645,245.50
Step by Step Solution
- Step 1: Write the proportion equation
4,678,619.12 : 6,456,134.04 = 2,641,629.68 : x - Step 2: Convert to fraction form
4,678,619.12/6,456,134.04 = 2,641,629.68/x - Step 3: Cross multiply
4,678,619.12x = 6,456,134.04 × 2,641,629.68 - Step 4: Simplify right side
4,678,619.12x = 17,054,715,298,122.31 - Step 5: Solve for x
x = 17,054,715,298,122.31/4,678,619.12 - Step 6: Final answer
x = 3,645,245.50
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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.