Finding the Fourth Proportional to 195,611,743.80, 293,417,615.70 and 138,216,115.80
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Solution
The fourth proportional to 195,611,743.80, 293,417,615.70 and 138,216,115.80 is: 207,324,173.70
Step by Step Solution
- Step 1: Write the proportion equation
195,611,743.80 : 293,417,615.70 = 138,216,115.80 : x - Step 2: Convert to fraction form
195,611,743.80/293,417,615.70 = 138,216,115.80/x - Step 3: Cross multiply
195,611,743.80x = 293,417,615.70 × 138,216,115.80 - Step 4: Simplify right side
195,611,743.80x = 40,555,043,149,351,096 - Step 5: Solve for x
x = 40,555,043,149,351,096/195,611,743.80 - Step 6: Final answer
x = 207,324,173.70
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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.