Finding the Fourth Proportional to 4,128,161.91, 5,696,939.79 and 2,292,790.20
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Solution
The fourth proportional to 4,128,161.91, 5,696,939.79 and 2,292,790.20 is: 3,164,092.88
Step by Step Solution
- Step 1: Write the proportion equation
4,128,161.91 : 5,696,939.79 = 2,292,790.20 : x - Step 2: Convert to fraction form
4,128,161.91/5,696,939.79 = 2,292,790.20/x - Step 3: Cross multiply
4,128,161.91x = 5,696,939.79 × 2,292,790.20 - Step 4: Simplify right side
4,128,161.91x = 13,061,887,720,502.06 - Step 5: Solve for x
x = 13,061,887,720,502.06/4,128,161.91 - Step 6: Final answer
x = 3,164,092.88
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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.