Finding the Fourth Proportional to 5,398,149, 7,449,445.97 and 2,950,769.74
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Solution
The fourth proportional to 5,398,149, 7,449,445.97 and 2,950,769.74 is: 4,072,062.43
Step by Step Solution
- Step 1: Write the proportion equation
5,398,149 : 7,449,445.97 = 2,950,769.74 : x - Step 2: Convert to fraction form
5,398,149/7,449,445.97 = 2,950,769.74/x - Step 3: Cross multiply
5,398,149x = 7,449,445.97 × 2,950,769.74 - Step 4: Simplify right side
5,398,149x = 21,981,599,748,040.95 - Step 5: Solve for x
x = 21,981,599,748,040.95/5,398,149 - Step 6: Final answer
x = 4,072,062.43
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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.