Finding the Fourth Proportional to 3,422,324.25, 5,138,532.81 and 1,908,963.99
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Solution
The fourth proportional to 3,422,324.25, 5,138,532.81 and 1,908,963.99 is: 2,866,260.87
Step by Step Solution
- Step 1: Write the proportion equation
3,422,324.25 : 5,138,532.81 = 1,908,963.99 : x - Step 2: Convert to fraction form
3,422,324.25/5,138,532.81 = 1,908,963.99/x - Step 3: Cross multiply
3,422,324.25x = 5,138,532.81 × 1,908,963.99 - Step 4: Simplify right side
3,422,324.25x = 9,809,274,095,723.51 - Step 5: Solve for x
x = 9,809,274,095,723.51/3,422,324.25 - Step 6: Final answer
x = 2,866,260.87
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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.