Finding the Fourth Proportional to 3,998,544.71, 5,512,252.57 and 2,850,632.15
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Solution
The fourth proportional to 3,998,544.71, 5,512,252.57 and 2,850,632.15 is: 3,929,780.84
Step by Step Solution
- Step 1: Write the proportion equation
3,998,544.71 : 5,512,252.57 = 2,850,632.15 : x - Step 2: Convert to fraction form
3,998,544.71/5,512,252.57 = 2,850,632.15/x - Step 3: Cross multiply
3,998,544.71x = 5,512,252.57 × 2,850,632.15 - Step 4: Simplify right side
3,998,544.71x = 15,713,404,360,274.28 - Step 5: Solve for x
x = 15,713,404,360,274.28/3,998,544.71 - Step 6: Final answer
x = 3,929,780.84
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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.