Finding the Fourth Proportional to 20,175,201.34, 27,809,253.66 and 13,646,449.88
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Solution
The fourth proportional to 20,175,201.34, 27,809,253.66 and 13,646,449.88 is: 18,810,101.56
Step by Step Solution
- Step 1: Write the proportion equation
20,175,201.34 : 27,809,253.66 = 13,646,449.88 : x - Step 2: Convert to fraction form
20,175,201.34/27,809,253.66 = 13,646,449.88/x - Step 3: Cross multiply
20,175,201.34x = 27,809,253.66 × 13,646,449.88 - Step 4: Simplify right side
20,175,201.34x = 379,497,586,271,396.56 - Step 5: Solve for x
x = 379,497,586,271,396.56/20,175,201.34 - Step 6: Final answer
x = 18,810,101.56
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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.