Finding the Fourth Proportional to 5,339,379.84, 7,368,285.52 and 2,891,930
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Solution
The fourth proportional to 5,339,379.84, 7,368,285.52 and 2,891,930 is: 3,990,831.63
Step by Step Solution
- Step 1: Write the proportion equation
5,339,379.84 : 7,368,285.52 = 2,891,930 : x - Step 2: Convert to fraction form
5,339,379.84/7,368,285.52 = 2,891,930/x - Step 3: Cross multiply
5,339,379.84x = 7,368,285.52 × 2,891,930 - Step 4: Simplify right side
5,339,379.84x = 21,308,565,943,853.60 - Step 5: Solve for x
x = 21,308,565,943,853.60/5,339,379.84 - Step 6: Final answer
x = 3,990,831.63
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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.