Finding the Fourth Proportional to 7,347,619.20, 11,018,804.40 and 2,555,464.80
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Solution
The fourth proportional to 7,347,619.20, 11,018,804.40 and 2,555,464.80 is: 3,832,284.45
Step by Step Solution
- Step 1: Write the proportion equation
7,347,619.20 : 11,018,804.40 = 2,555,464.80 : x - Step 2: Convert to fraction form
7,347,619.20/11,018,804.40 = 2,555,464.80/x - Step 3: Cross multiply
7,347,619.20x = 11,018,804.40 × 2,555,464.80 - Step 4: Simplify right side
7,347,619.20x = 28,158,166,782,285.12 - Step 5: Solve for x
x = 28,158,166,782,285.12/7,347,619.20 - Step 6: Final answer
x = 3,832,284.45
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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.