Finding the Fourth Proportional to 7,442,938.70, 11,164,408.05 and 2,394,249.20
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Solution
The fourth proportional to 7,442,938.70, 11,164,408.05 and 2,394,249.20 is: 3,591,373.80
Step by Step Solution
- Step 1: Write the proportion equation
7,442,938.70 : 11,164,408.05 = 2,394,249.20 : x - Step 2: Convert to fraction form
7,442,938.70/11,164,408.05 = 2,394,249.20/x - Step 3: Cross multiply
7,442,938.70x = 11,164,408.05 × 2,394,249.20 - Step 4: Simplify right side
7,442,938.70x = 26,730,375,042,186.06 - Step 5: Solve for x
x = 26,730,375,042,186.06/7,442,938.70 - Step 6: Final answer
x = 3,591,373.80
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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.