Finding the Fourth Proportional to 3,828,661.68, 5,283,485.33 and 2,086,346.47
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Solution
The fourth proportional to 3,828,661.68, 5,283,485.33 and 2,086,346.47 is: 2,879,121.19
Step by Step Solution
- Step 1: Write the proportion equation
3,828,661.68 : 5,283,485.33 = 2,086,346.47 : x - Step 2: Convert to fraction form
3,828,661.68/5,283,485.33 = 2,086,346.47/x - Step 3: Cross multiply
3,828,661.68x = 5,283,485.33 × 2,086,346.47 - Step 4: Simplify right side
3,828,661.68x = 11,023,180,967,542.29 - Step 5: Solve for x
x = 11,023,180,967,542.29/3,828,661.68 - Step 6: Final answer
x = 2,879,121.19
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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.