Finding the Fourth Proportional to 13,106,108.07, 18,086,513.22 and 7,305,257.70
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Solution
The fourth proportional to 13,106,108.07, 18,086,513.22 and 7,305,257.70 is: 10,081,302.49
Step by Step Solution
- Step 1: Write the proportion equation
13,106,108.07 : 18,086,513.22 = 7,305,257.70 : x - Step 2: Convert to fraction form
13,106,108.07/18,086,513.22 = 7,305,257.70/x - Step 3: Cross multiply
13,106,108.07x = 18,086,513.22 × 7,305,257.70 - Step 4: Simplify right side
13,106,108.07x = 132,126,639,966,556.78 - Step 5: Solve for x
x = 132,126,639,966,556.78/13,106,108.07 - Step 6: Final answer
x = 10,081,302.49
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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.