Finding the Fourth Proportional to 6,699,830.45, 9,245,311.13 and 3,643,979.09
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Solution
The fourth proportional to 6,699,830.45, 9,245,311.13 and 3,643,979.09 is: 5,028,443.73
Step by Step Solution
- Step 1: Write the proportion equation
6,699,830.45 : 9,245,311.13 = 3,643,979.09 : x - Step 2: Convert to fraction form
6,699,830.45/9,245,311.13 = 3,643,979.09/x - Step 3: Cross multiply
6,699,830.45x = 9,245,311.13 × 3,643,979.09 - Step 4: Simplify right side
6,699,830.45x = 33,689,720,420,044.38 - Step 5: Solve for x
x = 33,689,720,420,044.38/6,699,830.45 - Step 6: Final answer
x = 5,028,443.73
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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.