Finding the Fourth Proportional to 3,615,846.81, 4,989,929.84 and 1,984,405.97
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Solution
The fourth proportional to 3,615,846.81, 4,989,929.84 and 1,984,405.97 is: 2,738,513.84
Step by Step Solution
- Step 1: Write the proportion equation
3,615,846.81 : 4,989,929.84 = 1,984,405.97 : x - Step 2: Convert to fraction form
3,615,846.81/4,989,929.84 = 1,984,405.97/x - Step 3: Cross multiply
3,615,846.81x = 4,989,929.84 × 1,984,405.97 - Step 4: Simplify right side
3,615,846.81x = 9,902,046,529,505.47 - Step 5: Solve for x
x = 9,902,046,529,505.47/3,615,846.81 - Step 6: Final answer
x = 2,738,513.84
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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.