Finding the Fourth Proportional to 4,876,336.20, 6,729,269.76 and 2,671,181.40
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Solution
The fourth proportional to 4,876,336.20, 6,729,269.76 and 2,671,181.40 is: 3,686,189.69
Step by Step Solution
- Step 1: Write the proportion equation
4,876,336.20 : 6,729,269.76 = 2,671,181.40 : x - Step 2: Convert to fraction form
4,876,336.20/6,729,269.76 = 2,671,181.40/x - Step 3: Cross multiply
4,876,336.20x = 6,729,269.76 × 2,671,181.40 - Step 4: Simplify right side
4,876,336.20x = 17,975,100,218,494.46 - Step 5: Solve for x
x = 17,975,100,218,494.46/4,876,336.20 - Step 6: Final answer
x = 3,686,189.69
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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.