Finding the Fourth Proportional to 8,252,307.20, 12,378,460.80 and 3,458,403.20
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Solution
The fourth proportional to 8,252,307.20, 12,378,460.80 and 3,458,403.20 is: 5,187,604.80
Step by Step Solution
- Step 1: Write the proportion equation
8,252,307.20 : 12,378,460.80 = 3,458,403.20 : x - Step 2: Convert to fraction form
8,252,307.20/12,378,460.80 = 3,458,403.20/x - Step 3: Cross multiply
8,252,307.20x = 12,378,460.80 × 3,458,403.20 - Step 4: Simplify right side
8,252,307.20x = 42,809,708,441,794.56 - Step 5: Solve for x
x = 42,809,708,441,794.56/8,252,307.20 - Step 6: Final answer
x = 5,187,604.80
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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.