Finding the Fourth Proportional to 7,739,241.40, 11,608,825.58 and 1,981,963.88
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Solution
The fourth proportional to 7,739,241.40, 11,608,825.58 and 1,981,963.88 is: 2,972,936.47
Step by Step Solution
- Step 1: Write the proportion equation
7,739,241.40 : 11,608,825.58 = 1,981,963.88 : x - Step 2: Convert to fraction form
7,739,241.40/11,608,825.58 = 1,981,963.88/x - Step 3: Cross multiply
7,739,241.40x = 11,608,825.58 × 1,981,963.88 - Step 4: Simplify right side
7,739,241.40x = 23,008,272,988,780.05 - Step 5: Solve for x
x = 23,008,272,988,780.05/7,739,241.40 - Step 6: Final answer
x = 2,972,936.47
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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.