Finding the Fourth Proportional to 4,678,628.62, 6,456,147.15 and 2,641,639.18
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Solution
The fourth proportional to 4,678,628.62, 6,456,147.15 and 2,641,639.18 is: 3,645,258.61
Step by Step Solution
- Step 1: Write the proportion equation
4,678,628.62 : 6,456,147.15 = 2,641,639.18 : x - Step 2: Convert to fraction form
4,678,628.62/6,456,147.15 = 2,641,639.18/x - Step 3: Cross multiply
4,678,628.62x = 6,456,147.15 × 2,641,639.18 - Step 4: Simplify right side
4,678,628.62x = 17,054,811,263,285.34 - Step 5: Solve for x
x = 17,054,811,263,285.34/4,678,628.62 - Step 6: Final answer
x = 3,645,258.61
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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.