Finding the Fourth Proportional to 38,981,420.27, 53,794,361.00 and 21,577,765.49
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Solution
The fourth proportional to 38,981,420.27, 53,794,361.00 and 21,577,765.49 is: 29,777,316.94
Step by Step Solution
- Step 1: Write the proportion equation
38,981,420.27 : 53,794,361.00 = 21,577,765.49 : x - Step 2: Convert to fraction form
38,981,420.27/53,794,361.00 = 21,577,765.49/x - Step 3: Cross multiply
38,981,420.27x = 53,794,361.00 × 21,577,765.49 - Step 4: Simplify right side
38,981,420.27x = 1,160,762,105,965,541.25 - Step 5: Solve for x
x = 1,160,762,105,965,541.25/38,981,420.27 - Step 6: Final answer
x = 29,777,316.94
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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.