Finding the Fourth Proportional to 17,616,642.80, 26,424,964.20 and 12,514,809.20
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Solution
The fourth proportional to 17,616,642.80, 26,424,964.20 and 12,514,809.20 is: 18,772,213.80
Step by Step Solution
- Step 1: Write the proportion equation
17,616,642.80 : 26,424,964.20 = 12,514,809.20 : x - Step 2: Convert to fraction form
17,616,642.80/26,424,964.20 = 12,514,809.20/x - Step 3: Cross multiply
17,616,642.80x = 26,424,964.20 × 12,514,809.20 - Step 4: Simplify right side
17,616,642.80x = 330,703,385,079,830.62 - Step 5: Solve for x
x = 330,703,385,079,830.62/17,616,642.80 - Step 6: Final answer
x = 18,772,213.80
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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.