Finding the Fourth Proportional to 10,909,622.09, 15,069,649.56 and 8,086,391.99
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Solution
The fourth proportional to 10,909,622.09, 15,069,649.56 and 8,086,391.99 is: 11,169,873.03
Step by Step Solution
- Step 1: Write the proportion equation
10,909,622.09 : 15,069,649.56 = 8,086,391.99 : x - Step 2: Convert to fraction form
10,909,622.09/15,069,649.56 = 8,086,391.99/x - Step 3: Cross multiply
10,909,622.09x = 15,069,649.56 × 8,086,391.99 - Step 4: Simplify right side
10,909,622.09x = 121,859,093,494,091.03 - Step 5: Solve for x
x = 121,859,093,494,091.03/10,909,622.09 - Step 6: Final answer
x = 11,169,873.03
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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.