Finding the Fourth Proportional to 8,789,249.68, 12,129,162.82 and 4,869,260.55
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Solution
The fourth proportional to 8,789,249.68, 12,129,162.82 and 4,869,260.55 is: 6,719,578.60
Step by Step Solution
- Step 1: Write the proportion equation
8,789,249.68 : 12,129,162.82 = 4,869,260.55 : x - Step 2: Convert to fraction form
8,789,249.68/12,129,162.82 = 4,869,260.55/x - Step 3: Cross multiply
8,789,249.68x = 12,129,162.82 × 4,869,260.55 - Step 4: Simplify right side
8,789,249.68x = 59,060,054,011,779.60 - Step 5: Solve for x
x = 59,060,054,011,779.60/8,789,249.68 - Step 6: Final answer
x = 6,719,578.60
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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.