Finding the Fourth Proportional to 12,171,258.48, 18,259,920.36 and 3,651,751.92
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Solution
The fourth proportional to 12,171,258.48, 18,259,920.36 and 3,651,751.92 is: 5,478,537.77
Step by Step Solution
- Step 1: Write the proportion equation
12,171,258.48 : 18,259,920.36 = 3,651,751.92 : x - Step 2: Convert to fraction form
12,171,258.48/18,259,920.36 = 3,651,751.92/x - Step 3: Cross multiply
12,171,258.48x = 18,259,920.36 × 3,651,751.92 - Step 4: Simplify right side
12,171,258.48x = 66,680,699,233,677.09 - Step 5: Solve for x
x = 66,680,699,233,677.09/12,171,258.48 - Step 6: Final answer
x = 5,478,537.77
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.