Finding the Fourth Proportional to 18,450,181.20, 27,651,263.40 and 7,507,615.80
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Solution
The fourth proportional to 18,450,181.20, 27,651,263.40 and 7,507,615.80 is: 11,251,654.37
Step by Step Solution
- Step 1: Write the proportion equation
18,450,181.20 : 27,651,263.40 = 7,507,615.80 : x - Step 2: Convert to fraction form
18,450,181.20/27,651,263.40 = 7,507,615.80/x - Step 3: Cross multiply
18,450,181.20x = 27,651,263.40 × 7,507,615.80 - Step 4: Simplify right side
18,450,181.20x = 207,595,061,991,801.72 - Step 5: Solve for x
x = 207,595,061,991,801.72/18,450,181.20 - Step 6: Final answer
x = 11,251,654.37
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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.