Finding the Fourth Proportional to 7,182,805.29, 9,912,481.96 and 3,919,830.70
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Solution
The fourth proportional to 7,182,805.29, 9,912,481.96 and 3,919,830.70 is: 5,409,481.33
Step by Step Solution
- Step 1: Write the proportion equation
7,182,805.29 : 9,912,481.96 = 3,919,830.70 : x - Step 2: Convert to fraction form
7,182,805.29/9,912,481.96 = 3,919,830.70/x - Step 3: Cross multiply
7,182,805.29x = 9,912,481.96 × 3,919,830.70 - Step 4: Simplify right side
7,182,805.29x = 38,855,251,100,004.18 - Step 5: Solve for x
x = 38,855,251,100,004.18/7,182,805.29 - Step 6: Final answer
x = 5,409,481.33
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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.