Finding the Fourth Proportional to 6,470,205.80, 9,705,308.70 and 4,977,213.80
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Solution
The fourth proportional to 6,470,205.80, 9,705,308.70 and 4,977,213.80 is: 7,465,820.70
Step by Step Solution
- Step 1: Write the proportion equation
6,470,205.80 : 9,705,308.70 = 4,977,213.80 : x - Step 2: Convert to fraction form
6,470,205.80/9,705,308.70 = 4,977,213.80/x - Step 3: Cross multiply
6,470,205.80x = 9,705,308.70 × 4,977,213.80 - Step 4: Simplify right side
6,470,205.80x = 48,305,396,394,900.05 - Step 5: Solve for x
x = 48,305,396,394,900.05/6,470,205.80 - Step 6: Final answer
x = 7,465,820.70
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Similar ratio
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1.5x scale
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.