Finding the Fourth Proportional to 7,729,130.97, 10,665,997.79 and 4,291,283.61
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Solution
The fourth proportional to 7,729,130.97, 10,665,997.79 and 4,291,283.61 is: 5,921,858.70
Step by Step Solution
- Step 1: Write the proportion equation
7,729,130.97 : 10,665,997.79 = 4,291,283.61 : x - Step 2: Convert to fraction form
7,729,130.97/10,665,997.79 = 4,291,283.61/x - Step 3: Cross multiply
7,729,130.97x = 10,665,997.79 × 4,291,283.61 - Step 4: Simplify right side
7,729,130.97x = 45,770,821,479,066.80 - Step 5: Solve for x
x = 45,770,821,479,066.80/7,729,130.97 - Step 6: Final answer
x = 5,921,858.70
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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.