Finding the Fourth Proportional to 4,912,469.40, 7,368,704.10 and 4,487,316.60
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Solution
The fourth proportional to 4,912,469.40, 7,368,704.10 and 4,487,316.60 is: 6,730,974.90
Step by Step Solution
- Step 1: Write the proportion equation
4,912,469.40 : 7,368,704.10 = 4,487,316.60 : x - Step 2: Convert to fraction form
4,912,469.40/7,368,704.10 = 4,487,316.60/x - Step 3: Cross multiply
4,912,469.40x = 7,368,704.10 × 4,487,316.60 - Step 4: Simplify right side
4,912,469.40x = 33,065,708,228,418.05 - Step 5: Solve for x
x = 33,065,708,228,418.05/4,912,469.40 - Step 6: Final answer
x = 6,730,974.90
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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.