Finding the Fourth Proportional to 3,639,288,624.40, 5,458,932,936.60 and 1,310,585,021.20
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Solution
The fourth proportional to 3,639,288,624.40, 5,458,932,936.60 and 1,310,585,021.20 is: 1,965,877,531.80
Step by Step Solution
- Step 1: Write the proportion equation
3,639,288,624.40 : 5,458,932,936.60 = 1,310,585,021.20 : x - Step 2: Convert to fraction form
3,639,288,624.40/5,458,932,936.60 = 1,310,585,021.20/x - Step 3: Cross multiply
3,639,288,624.40x = 5,458,932,936.60 × 1,310,585,021.20 - Step 4: Simplify right side
3,639,288,624.40x = 7,154,395,738,443,289,600 - Step 5: Solve for x
x = 7,154,395,738,443,289,600/3,639,288,624.40 - Step 6: Final answer
x = 1,965,877,531.80
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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.