Finding the Fourth Proportional to 12,769,441.18, 17,622,201.16 and 6,968,596.60
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Solution
The fourth proportional to 12,769,441.18, 17,622,201.16 and 6,968,596.60 is: 9,616,866.50
Step by Step Solution
- Step 1: Write the proportion equation
12,769,441.18 : 17,622,201.16 = 6,968,596.60 : x - Step 2: Convert to fraction form
12,769,441.18/17,622,201.16 = 6,968,596.60/x - Step 3: Cross multiply
12,769,441.18x = 17,622,201.16 × 6,968,596.60 - Step 4: Simplify right side
12,769,441.18x = 122,802,011,088,092.05 - Step 5: Solve for x
x = 122,802,011,088,092.05/12,769,441.18 - Step 6: Final answer
x = 9,616,866.50
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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.