Finding the Fourth Proportional to 21,718,262.16, 29,960,115.84 and 13,869,524.16
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Solution
The fourth proportional to 21,718,262.16, 29,960,115.84 and 13,869,524.16 is: 19,132,863.74
Step by Step Solution
- Step 1: Write the proportion equation
21,718,262.16 : 29,960,115.84 = 13,869,524.16 : x - Step 2: Convert to fraction form
21,718,262.16/29,960,115.84 = 13,869,524.16/x - Step 3: Cross multiply
21,718,262.16x = 29,960,115.84 × 13,869,524.16 - Step 4: Simplify right side
21,718,262.16x = 415,532,550,479,278.69 - Step 5: Solve for x
x = 415,532,550,479,278.69/21,718,262.16 - Step 6: Final answer
x = 19,132,863.74
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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.