Finding the Fourth Proportional to 39,363,560.18, 54,321,736.42 and 21,959,905.34
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Solution
The fourth proportional to 39,363,560.18, 54,321,736.42 and 21,959,905.34 is: 30,304,682.41
Step by Step Solution
- Step 1: Write the proportion equation
39,363,560.18 : 54,321,736.42 = 21,959,905.34 : x - Step 2: Convert to fraction form
39,363,560.18/54,321,736.42 = 21,959,905.34/x - Step 3: Cross multiply
39,363,560.18x = 54,321,736.42 × 21,959,905.34 - Step 4: Simplify right side
39,363,560.18x = 1,192,900,189,850,884.75 - Step 5: Solve for x
x = 1,192,900,189,850,884.75/39,363,560.18 - Step 6: Final answer
x = 30,304,682.41
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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.