Finding the Fourth Proportional to 68,079,219.76, 93,936,474.20 and 40,579,706.80
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Solution
The fourth proportional to 68,079,219.76, 93,936,474.20 and 40,579,706.80 is: 55,992,336.49
Step by Step Solution
- Step 1: Write the proportion equation
68,079,219.76 : 93,936,474.20 = 40,579,706.80 : x - Step 2: Convert to fraction form
68,079,219.76/93,936,474.20 = 40,579,706.80/x - Step 3: Cross multiply
68,079,219.76x = 93,936,474.20 × 40,579,706.80 - Step 4: Simplify right side
68,079,219.76x = 3,811,914,581,080,635 - Step 5: Solve for x
x = 3,811,914,581,080,635/68,079,219.76 - Step 6: Final answer
x = 55,992,336.49
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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.