Finding the Fourth Proportional to 15,383,167.08, 21,227,911.68 and 8,412,469.08
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Solution
The fourth proportional to 15,383,167.08, 21,227,911.68 and 8,412,469.08 is: 11,608,737.64
Step by Step Solution
- Step 1: Write the proportion equation
15,383,167.08 : 21,227,911.68 = 8,412,469.08 : x - Step 2: Convert to fraction form
15,383,167.08/21,227,911.68 = 8,412,469.08/x - Step 3: Cross multiply
15,383,167.08x = 21,227,911.68 × 8,412,469.08 - Step 4: Simplify right side
15,383,167.08x = 178,579,150,640,970.84 - Step 5: Solve for x
x = 178,579,150,640,970.84/15,383,167.08 - Step 6: Final answer
x = 11,608,737.64
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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.