Finding the Fourth Proportional to 165,770,514.80, 248,655,772.20 and 129,490,809.20
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Solution
The fourth proportional to 165,770,514.80, 248,655,772.20 and 129,490,809.20 is: 194,236,213.80
Step by Step Solution
- Step 1: Write the proportion equation
165,770,514.80 : 248,655,772.20 = 129,490,809.20 : x - Step 2: Convert to fraction form
165,770,514.80/248,655,772.20 = 129,490,809.20/x - Step 3: Cross multiply
165,770,514.80x = 248,655,772.20 × 129,490,809.20 - Step 4: Simplify right side
165,770,514.80x = 32,198,637,154,428,864 - Step 5: Solve for x
x = 32,198,637,154,428,864/165,770,514.80 - Step 6: Final answer
x = 194,236,213.80
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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.