Finding the Fourth Proportional to 4,678,618.12, 6,456,132.66 and 2,641,628.68
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Solution
The fourth proportional to 4,678,618.12, 6,456,132.66 and 2,641,628.68 is: 3,645,244.12
Step by Step Solution
- Step 1: Write the proportion equation
4,678,618.12 : 6,456,132.66 = 2,641,628.68 : x - Step 2: Convert to fraction form
4,678,618.12/6,456,132.66 = 2,641,628.68/x - Step 3: Cross multiply
4,678,618.12x = 6,456,132.66 × 2,641,628.68 - Step 4: Simplify right side
4,678,618.12x = 17,054,705,196,540.69 - Step 5: Solve for x
x = 17,054,705,196,540.69/4,678,618.12 - Step 6: Final answer
x = 3,645,244.12
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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.