Finding the Fourth Proportional to 7,135,910.72, 9,847,591.85 and 3,872,729.19
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Solution
The fourth proportional to 7,135,910.72, 9,847,591.85 and 3,872,729.19 is: 5,344,385.31
Step by Step Solution
- Step 1: Write the proportion equation
7,135,910.72 : 9,847,591.85 = 3,872,729.19 : x - Step 2: Convert to fraction form
7,135,910.72/9,847,591.85 = 3,872,729.19/x - Step 3: Cross multiply
7,135,910.72x = 9,847,591.85 × 3,872,729.19 - Step 4: Simplify right side
7,135,910.72x = 38,137,056,389,337.46 - Step 5: Solve for x
x = 38,137,056,389,337.46/7,135,910.72 - Step 6: Final answer
x = 5,344,385.31
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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.