Finding the Fourth Proportional to 6,669,037.12, 9,199,915.68 and 4,376,879.68
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Solution
The fourth proportional to 6,669,037.12, 9,199,915.68 and 4,376,879.68 is: 6,037,891.72
Step by Step Solution
- Step 1: Write the proportion equation
6,669,037.12 : 9,199,915.68 = 4,376,879.68 : x - Step 2: Convert to fraction form
6,669,037.12/9,199,915.68 = 4,376,879.68/x - Step 3: Cross multiply
6,669,037.12x = 9,199,915.68 × 4,376,879.68 - Step 4: Simplify right side
6,669,037.12x = 40,266,923,997,505.38 - Step 5: Solve for x
x = 40,266,923,997,505.38/6,669,037.12 - Step 6: Final answer
x = 6,037,891.72
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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.