Finding the Fourth Proportional to 7,340,147.60, 11,010,221.40 and 4,789,230.80
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Solution
The fourth proportional to 7,340,147.60, 11,010,221.40 and 4,789,230.80 is: 7,183,846.20
Step by Step Solution
- Step 1: Write the proportion equation
7,340,147.60 : 11,010,221.40 = 4,789,230.80 : x - Step 2: Convert to fraction form
7,340,147.60/11,010,221.40 = 4,789,230.80/x - Step 3: Cross multiply
7,340,147.60x = 11,010,221.40 × 4,789,230.80 - Step 4: Simplify right side
7,340,147.60x = 52,730,491,443,699.12 - Step 5: Solve for x
x = 52,730,491,443,699.12/7,340,147.60 - Step 6: Final answer
x = 7,183,846.20
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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.