Finding the Fourth Proportional to 6,422,338.80, 9,641,729.09 and 5,517,311.38
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Solution
The fourth proportional to 6,422,338.80, 9,641,729.09 and 5,517,311.38 is: 8,283,029.48
Step by Step Solution
- Step 1: Write the proportion equation
6,422,338.80 : 9,641,729.09 = 5,517,311.38 : x - Step 2: Convert to fraction form
6,422,338.80/9,641,729.09 = 5,517,311.38/x - Step 3: Cross multiply
6,422,338.80x = 9,641,729.09 × 5,517,311.38 - Step 4: Simplify right side
6,422,338.80x = 53,196,421,631,134.04 - Step 5: Solve for x
x = 53,196,421,631,134.04/6,422,338.80 - Step 6: Final answer
x = 8,283,029.48
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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.