Finding the Fourth Proportional to 7,982,128.72, 11,015,347.62 and 4,544,369.68
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Solution
The fourth proportional to 7,982,128.72, 11,015,347.62 and 4,544,369.68 is: 6,271,235.84
Step by Step Solution
- Step 1: Write the proportion equation
7,982,128.72 : 11,015,347.62 = 4,544,369.68 : x - Step 2: Convert to fraction form
7,982,128.72/11,015,347.62 = 4,544,369.68/x - Step 3: Cross multiply
7,982,128.72x = 11,015,347.62 × 4,544,369.68 - Step 4: Simplify right side
7,982,128.72x = 50,057,811,738,988.16 - Step 5: Solve for x
x = 50,057,811,738,988.16/7,982,128.72 - Step 6: Final answer
x = 6,271,235.84
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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.