Finding the Fourth Proportional to 7,214,758.49, 9,951,576.67 and 4,639,697.21
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Solution
The fourth proportional to 7,214,758.49, 9,951,576.67 and 4,639,697.21 is: 6,399,701.75
Step by Step Solution
- Step 1: Write the proportion equation
7,214,758.49 : 9,951,576.67 = 4,639,697.21 : x - Step 2: Convert to fraction form
7,214,758.49/9,951,576.67 = 4,639,697.21/x - Step 3: Cross multiply
7,214,758.49x = 9,951,576.67 × 4,639,697.21 - Step 4: Simplify right side
7,214,758.49x = 46,172,302,541,578.66 - Step 5: Solve for x
x = 46,172,302,541,578.66/7,214,758.49 - Step 6: Final answer
x = 6,399,701.75
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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.