Finding the Fourth Proportional to 4,969,933.20, 7,454,899.80 and 2,578,448.70
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Solution
The fourth proportional to 4,969,933.20, 7,454,899.80 and 2,578,448.70 is: 3,867,673.05
Step by Step Solution
- Step 1: Write the proportion equation
4,969,933.20 : 7,454,899.80 = 2,578,448.70 : x - Step 2: Convert to fraction form
4,969,933.20/7,454,899.80 = 2,578,448.70/x - Step 3: Cross multiply
4,969,933.20x = 7,454,899.80 × 2,578,448.70 - Step 4: Simplify right side
4,969,933.20x = 19,222,076,697,940.26 - Step 5: Solve for x
x = 19,222,076,697,940.26/4,969,933.20 - Step 6: Final answer
x = 3,867,673.05
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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.