Finding the Fourth Proportional to 7,214,759.49, 9,951,578.05 and 4,639,698.21
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Solution
The fourth proportional to 7,214,759.49, 9,951,578.05 and 4,639,698.21 is: 6,399,703.13
Step by Step Solution
- Step 1: Write the proportion equation
7,214,759.49 : 9,951,578.05 = 4,639,698.21 : x - Step 2: Convert to fraction form
7,214,759.49/9,951,578.05 = 4,639,698.21/x - Step 3: Cross multiply
7,214,759.49x = 9,951,578.05 × 4,639,698.21 - Step 4: Simplify right side
7,214,759.49x = 46,172,318,865,260.30 - Step 5: Solve for x
x = 46,172,318,865,260.30/7,214,759.49 - Step 6: Final answer
x = 6,399,703.13
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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.