Finding the Fourth Proportional to 61,121,515.68, 91,672,306.20 and 17,980,628.40
Calculator
Solution
The fourth proportional to 61,121,515.68, 91,672,306.20 and 17,980,628.40 is: 26,968,010.43
Step by Step Solution
- Step 1: Write the proportion equation
61,121,515.68 : 91,672,306.20 = 17,980,628.40 : x - Step 2: Convert to fraction form
61,121,515.68/91,672,306.20 = 17,980,628.40/x - Step 3: Cross multiply
61,121,515.68x = 91,672,306.20 × 17,980,628.40 - Step 4: Simplify right side
61,121,515.68x = 1,648,325,672,353,216 - Step 5: Solve for x
x = 1,648,325,672,353,216/61,121,515.68 - Step 6: Final answer
x = 26,968,010.43
Related Problems
Find fourth proportional to 30,560,757.84, 45,836,153.10 and 8,990,314.20
Half scale
Find fourth proportional to 122,243,031.36, 183,344,612.40 and 35,961,256.80
Double scale
Find fourth proportional to 61,121,516.68, 91,672,307.70 and 17,980,629.40
Similar ratio
Find fourth proportional to 91,682,273.52, 137,508,459.30 and 26,970,942.60
1.5x scale
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.