Finding the Fourth Proportional to 8,157,647.70, 12,236,471.55 and 4,378,511.70
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Solution
The fourth proportional to 8,157,647.70, 12,236,471.55 and 4,378,511.70 is: 6,567,767.55
Step by Step Solution
- Step 1: Write the proportion equation
8,157,647.70 : 12,236,471.55 = 4,378,511.70 : x - Step 2: Convert to fraction form
8,157,647.70/12,236,471.55 = 4,378,511.70/x - Step 3: Cross multiply
8,157,647.70x = 12,236,471.55 × 4,378,511.70 - Step 4: Simplify right side
8,157,647.70x = 53,577,533,848,392.14 - Step 5: Solve for x
x = 53,577,533,848,392.14/8,157,647.70 - Step 6: Final answer
x = 6,567,767.55
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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.