Finding the Fourth Proportional to 7,952,281.92, 10,980,620.82 and 6,482,421.09
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Solution
The fourth proportional to 7,952,281.92, 10,980,620.82 and 6,482,421.09 is: 8,951,016.66
Step by Step Solution
- Step 1: Write the proportion equation
7,952,281.92 : 10,980,620.82 = 6,482,421.09 : x - Step 2: Convert to fraction form
7,952,281.92/10,980,620.82 = 6,482,421.09/x - Step 3: Cross multiply
7,952,281.92x = 10,980,620.82 × 6,482,421.09 - Step 4: Simplify right side
7,952,281.92x = 71,181,007,984,861.09 - Step 5: Solve for x
x = 71,181,007,984,861.09/7,952,281.92 - Step 6: Final answer
x = 8,951,016.66
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.