Finding the Fourth Proportional to 18,135,099.20, 27,202,648.80 and 15,773,139.20
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Solution
The fourth proportional to 18,135,099.20, 27,202,648.80 and 15,773,139.20 is: 23,659,708.80
Step by Step Solution
- Step 1: Write the proportion equation
18,135,099.20 : 27,202,648.80 = 15,773,139.20 : x - Step 2: Convert to fraction form
18,135,099.20/27,202,648.80 = 15,773,139.20/x - Step 3: Cross multiply
18,135,099.20x = 27,202,648.80 × 15,773,139.20 - Step 4: Simplify right side
18,135,099.20x = 429,071,166,131,112.94 - Step 5: Solve for x
x = 429,071,166,131,112.94/18,135,099.20 - Step 6: Final answer
x = 23,659,708.80
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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.