Finding the Fourth Proportional to 19,982,084.97, 29,919,236.16 and 13,048,388.37
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Solution
The fourth proportional to 19,982,084.97, 29,919,236.16 and 13,048,388.37 is: 19,537,391.31
Step by Step Solution
- Step 1: Write the proportion equation
19,982,084.97 : 29,919,236.16 = 13,048,388.37 : x - Step 2: Convert to fraction form
19,982,084.97/29,919,236.16 = 13,048,388.37/x - Step 3: Cross multiply
19,982,084.97x = 29,919,236.16 × 13,048,388.37 - Step 4: Simplify right side
19,982,084.97x = 390,397,813,149,427.44 - Step 5: Solve for x
x = 390,397,813,149,427.44/19,982,084.97 - Step 6: Final answer
x = 19,537,391.31
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.