Finding the Fourth Proportional to 18,939,346.40, 26,136,286.76 and 10,237,519.13
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Solution
The fourth proportional to 18,939,346.40, 26,136,286.76 and 10,237,519.13 is: 14,127,770.31
Step by Step Solution
- Step 1: Write the proportion equation
18,939,346.40 : 26,136,286.76 = 10,237,519.13 : x - Step 2: Convert to fraction form
18,939,346.40/26,136,286.76 = 10,237,519.13/x - Step 3: Cross multiply
18,939,346.40x = 26,136,286.76 × 10,237,519.13 - Step 4: Simplify right side
18,939,346.40x = 267,570,735,783,600.22 - Step 5: Solve for x
x = 267,570,735,783,600.22/18,939,346.40 - Step 6: Final answer
x = 14,127,770.31
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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.