Finding the Fourth Proportional to 15,257,589.75, 21,055,482.36 and 8,382,514.68
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Solution
The fourth proportional to 15,257,589.75, 21,055,482.36 and 8,382,514.68 is: 11,567,874.93
Step by Step Solution
- Step 1: Write the proportion equation
15,257,589.75 : 21,055,482.36 = 8,382,514.68 : x - Step 2: Convert to fraction form
15,257,589.75/21,055,482.36 = 8,382,514.68/x - Step 3: Cross multiply
15,257,589.75x = 21,055,482.36 × 8,382,514.68 - Step 4: Simplify right side
15,257,589.75x = 176,497,889,977,181.03 - Step 5: Solve for x
x = 176,497,889,977,181.03/15,257,589.75 - Step 6: Final answer
x = 11,567,874.93
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.