Finding the Fourth Proportional to 18,454,866.16, 27,627,789.48 and 13,630,514.80
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Solution
The fourth proportional to 18,454,866.16, 27,627,789.48 and 13,630,514.80 is: 20,405,512.03
Step by Step Solution
- Step 1: Write the proportion equation
18,454,866.16 : 27,627,789.48 = 13,630,514.80 : x - Step 2: Convert to fraction form
18,454,866.16/27,627,789.48 = 13,630,514.80/x - Step 3: Cross multiply
18,454,866.16x = 27,627,789.48 × 13,630,514.80 - Step 4: Simplify right side
18,454,866.16x = 376,580,993,398,424.31 - Step 5: Solve for x
x = 376,580,993,398,424.31/18,454,866.16 - Step 6: Final answer
x = 20,405,512.03
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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.