Finding the Fourth Proportional to 21,134,743.24, 29,165,452.24 and 12,433,476.20
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Solution
The fourth proportional to 21,134,743.24, 29,165,452.24 and 12,433,476.20 is: 17,157,906.87
Step by Step Solution
- Step 1: Write the proportion equation
21,134,743.24 : 29,165,452.24 = 12,433,476.20 : x - Step 2: Convert to fraction form
21,134,743.24/29,165,452.24 = 12,433,476.20/x - Step 3: Cross multiply
21,134,743.24x = 29,165,452.24 × 12,433,476.20 - Step 4: Simplify right side
21,134,743.24x = 362,627,956,288,276.62 - Step 5: Solve for x
x = 362,627,956,288,276.62/21,134,743.24 - Step 6: Final answer
x = 17,157,906.87
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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.