Finding the Fourth Proportional to 5,339,215.44, 7,368,072.66 and 2,891,769.66
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Solution
The fourth proportional to 5,339,215.44, 7,368,072.66 and 2,891,769.66 is: 3,990,617.95
Step by Step Solution
- Step 1: Write the proportion equation
5,339,215.44 : 7,368,072.66 = 2,891,769.66 : x - Step 2: Convert to fraction form
5,339,215.44/7,368,072.66 = 2,891,769.66/x - Step 3: Cross multiply
5,339,215.44x = 7,368,072.66 × 2,891,769.66 - Step 4: Simplify right side
5,339,215.44x = 21,306,768,970,863.50 - Step 5: Solve for x
x = 21,306,768,970,863.50/5,339,215.44 - Step 6: Final answer
x = 3,990,617.95
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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.