Finding the Fourth Proportional to 3,930,449.97, 5,424,268.73 and 2,381,847.06
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Solution
The fourth proportional to 3,930,449.97, 5,424,268.73 and 2,381,847.06 is: 3,287,099.09
Step by Step Solution
- Step 1: Write the proportion equation
3,930,449.97 : 5,424,268.73 = 2,381,847.06 : x - Step 2: Convert to fraction form
3,930,449.97/5,424,268.73 = 2,381,847.06/x - Step 3: Cross multiply
3,930,449.97x = 5,424,268.73 × 2,381,847.06 - Step 4: Simplify right side
3,930,449.97x = 12,919,778,535,632.21 - Step 5: Solve for x
x = 12,919,778,535,632.21/3,930,449.97 - Step 6: Final answer
x = 3,287,099.09
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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.