Finding the Fourth Proportional to 3,843,938.85, 5,305,971.51 and 2,212,996.23
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Solution
The fourth proportional to 3,843,938.85, 5,305,971.51 and 2,212,996.23 is: 3,054,703.89
Step by Step Solution
- Step 1: Write the proportion equation
3,843,938.85 : 5,305,971.51 = 2,212,996.23 : x - Step 2: Convert to fraction form
3,843,938.85/5,305,971.51 = 2,212,996.23/x - Step 3: Cross multiply
3,843,938.85x = 5,305,971.51 × 2,212,996.23 - Step 4: Simplify right side
3,843,938.85x = 11,742,094,948,117.41 - Step 5: Solve for x
x = 11,742,094,948,117.41/3,843,938.85 - Step 6: Final answer
x = 3,054,703.89
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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.