Finding the Fourth Proportional to 10,230,052.40, 15,382,403.40 and 8,587,761.20
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Solution
The fourth proportional to 10,230,052.40, 15,382,403.40 and 8,587,761.20 is: 12,912,974.63
Step by Step Solution
- Step 1: Write the proportion equation
10,230,052.40 : 15,382,403.40 = 8,587,761.20 : x - Step 2: Convert to fraction form
10,230,052.40/15,382,403.40 = 8,587,761.20/x - Step 3: Cross multiply
10,230,052.40x = 15,382,403.40 × 8,587,761.20 - Step 4: Simplify right side
10,230,052.40x = 132,100,407,081,268.08 - Step 5: Solve for x
x = 132,100,407,081,268.08/10,230,052.40 - Step 6: Final answer
x = 12,912,974.63
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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.