Finding the Fourth Proportional to 7,403,186.36, 10,218,965.56 and 5,087,743.69
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Solution
The fourth proportional to 7,403,186.36, 10,218,965.56 and 5,087,743.69 is: 7,022,851.38
Step by Step Solution
- Step 1: Write the proportion equation
7,403,186.36 : 10,218,965.56 = 5,087,743.69 : x - Step 2: Convert to fraction form
7,403,186.36/10,218,965.56 = 5,087,743.69/x - Step 3: Cross multiply
7,403,186.36x = 10,218,965.56 × 5,087,743.69 - Step 4: Simplify right side
7,403,186.36x = 51,991,477,507,950.54 - Step 5: Solve for x
x = 51,991,477,507,950.54/7,403,186.36 - Step 6: Final answer
x = 7,022,851.38
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1.5x scale
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.