Finding the Fourth Proportional to 13,282,625.22, 18,323,760.09 and 7,772,620.02
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Solution
The fourth proportional to 13,282,625.22, 18,323,760.09 and 7,772,620.02 is: 10,722,550.86
Step by Step Solution
- Step 1: Write the proportion equation
13,282,625.22 : 18,323,760.09 = 7,772,620.02 : x - Step 2: Convert to fraction form
13,282,625.22/18,323,760.09 = 7,772,620.02/x - Step 3: Cross multiply
13,282,625.22x = 18,323,760.09 × 7,772,620.02 - Step 4: Simplify right side
13,282,625.22x = 142,423,624,517,211 - Step 5: Solve for x
x = 142,423,624,517,211/13,282,625.22 - Step 6: Final answer
x = 10,722,550.86
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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.