Finding the Fourth Proportional to 40,190,419.11, 60,229,778.16 and 20,982,861.99
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Solution
The fourth proportional to 40,190,419.11, 60,229,778.16 and 20,982,861.99 is: 31,445,134.21
Step by Step Solution
- Step 1: Write the proportion equation
40,190,419.11 : 60,229,778.16 = 20,982,861.99 : x - Step 2: Convert to fraction form
40,190,419.11/60,229,778.16 = 20,982,861.99/x - Step 3: Cross multiply
40,190,419.11x = 60,229,778.16 × 20,982,861.99 - Step 4: Simplify right side
40,190,419.11x = 1,263,793,122,819,596 - Step 5: Solve for x
x = 1,263,793,122,819,596/40,190,419.11 - Step 6: Final answer
x = 31,445,134.21
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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.