Finding the Fourth Proportional to 5,177,338.78, 7,766,241.46 and 1,981,636.06
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Solution
The fourth proportional to 5,177,338.78, 7,766,241.46 and 1,981,636.06 is: 2,972,543.38
Step by Step Solution
- Step 1: Write the proportion equation
5,177,338.78 : 7,766,241.46 = 1,981,636.06 : x - Step 2: Convert to fraction form
5,177,338.78/7,766,241.46 = 1,981,636.06/x - Step 3: Cross multiply
5,177,338.78x = 7,766,241.46 × 1,981,636.06 - Step 4: Simplify right side
5,177,338.78x = 15,389,864,127,803.05 - Step 5: Solve for x
x = 15,389,864,127,803.05/5,177,338.78 - Step 6: Final answer
x = 2,972,543.38
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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.