Finding the Fourth Proportional to 18,242,874.18, 25,175,168.69 and 9,982,938.26
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Solution
The fourth proportional to 18,242,874.18, 25,175,168.69 and 9,982,938.26 is: 13,776,456.07
Step by Step Solution
- Step 1: Write the proportion equation
18,242,874.18 : 25,175,168.69 = 9,982,938.26 : x - Step 2: Convert to fraction form
18,242,874.18/25,175,168.69 = 9,982,938.26/x - Step 3: Cross multiply
18,242,874.18x = 25,175,168.69 × 9,982,938.26 - Step 4: Simplify right side
18,242,874.18x = 251,322,154,730,378.28 - Step 5: Solve for x
x = 251,322,154,730,378.28/18,242,874.18 - Step 6: Final answer
x = 13,776,456.07
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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.