Finding the Fourth Proportional to 6,913,432.80, 10,368,766.80 and 3,319,192.80
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Solution
The fourth proportional to 6,913,432.80, 10,368,766.80 and 3,319,192.80 is: 4,978,125.50
Step by Step Solution
- Step 1: Write the proportion equation
6,913,432.80 : 10,368,766.80 = 3,319,192.80 : x - Step 2: Convert to fraction form
6,913,432.80/10,368,766.80 = 3,319,192.80/x - Step 3: Cross multiply
6,913,432.80x = 10,368,766.80 × 3,319,192.80 - Step 4: Simplify right side
6,913,432.80x = 34,415,936,107,439.04 - Step 5: Solve for x
x = 34,415,936,107,439.04/6,913,432.80 - Step 6: Final answer
x = 4,978,125.50
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.