Finding the Fourth Proportional to 7,182,806.06, 9,912,481.70 and 3,919,830.97
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Solution
The fourth proportional to 7,182,806.06, 9,912,481.70 and 3,919,830.97 is: 5,409,480.97
Step by Step Solution
- Step 1: Write the proportion equation
7,182,806.06 : 9,912,481.70 = 3,919,830.97 : x - Step 2: Convert to fraction form
7,182,806.06/9,912,481.70 = 3,919,830.97/x - Step 3: Cross multiply
7,182,806.06x = 9,912,481.70 × 3,919,830.97 - Step 4: Simplify right side
7,182,806.06x = 38,855,252,725,593.99 - Step 5: Solve for x
x = 38,855,252,725,593.99/7,182,806.06 - Step 6: Final answer
x = 5,409,480.97
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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.