Finding the Fourth Proportional to 18,088,540.40, 27,124,516.20 and 7,985,961.20
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Solution
The fourth proportional to 18,088,540.40, 27,124,516.20 and 7,985,961.20 is: 11,975,279.88
Step by Step Solution
- Step 1: Write the proportion equation
18,088,540.40 : 27,124,516.20 = 7,985,961.20 : x - Step 2: Convert to fraction form
18,088,540.40/27,124,516.20 = 7,985,961.20/x - Step 3: Cross multiply
18,088,540.40x = 27,124,516.20 × 7,985,961.20 - Step 4: Simplify right side
18,088,540.40x = 216,615,333,941,971.44 - Step 5: Solve for x
x = 216,615,333,941,971.44/18,088,540.40 - Step 6: Final answer
x = 11,975,279.88
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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.