Finding the Fourth Proportional to 45,419,076.80, 68,128,615.20 and 29,294,763.20
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Solution
The fourth proportional to 45,419,076.80, 68,128,615.20 and 29,294,763.20 is: 43,942,144.80
Step by Step Solution
- Step 1: Write the proportion equation
45,419,076.80 : 68,128,615.20 = 29,294,763.20 : x - Step 2: Convert to fraction form
45,419,076.80/68,128,615.20 = 29,294,763.20/x - Step 3: Cross multiply
45,419,076.80x = 68,128,615.20 × 29,294,763.20 - Step 4: Simplify right side
45,419,076.80x = 1,995,811,649,427,920.75 - Step 5: Solve for x
x = 1,995,811,649,427,920.75/45,419,076.80 - Step 6: Final answer
x = 43,942,144.80
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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.