Finding the Fourth Proportional to 7,815,361.80, 11,702,852.82 and 5,393,988.84
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Solution
The fourth proportional to 7,815,361.80, 11,702,852.82 and 5,393,988.84 is: 8,077,048.65
Step by Step Solution
- Step 1: Write the proportion equation
7,815,361.80 : 11,702,852.82 = 5,393,988.84 : x - Step 2: Convert to fraction form
7,815,361.80/11,702,852.82 = 5,393,988.84/x - Step 3: Cross multiply
7,815,361.80x = 11,702,852.82 × 5,393,988.84 - Step 4: Simplify right side
7,815,361.80x = 63,125,057,507,242.53 - Step 5: Solve for x
x = 63,125,057,507,242.53/7,815,361.80 - Step 6: Final answer
x = 8,077,048.65
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.