Finding the Fourth Proportional to 14,652,485.69, 20,221,672.38 and 8,128,217.26
Calculator
Solution
The fourth proportional to 14,652,485.69, 20,221,672.38 and 8,128,217.26 is: 11,217,628.87
Step by Step Solution
- Step 1: Write the proportion equation
14,652,485.69 : 20,221,672.38 = 8,128,217.26 : x - Step 2: Convert to fraction form
14,652,485.69/20,221,672.38 = 8,128,217.26/x - Step 3: Cross multiply
14,652,485.69x = 20,221,672.38 × 8,128,217.26 - Step 4: Simplify right side
14,652,485.69x = 164,366,146,459,977.56 - Step 5: Solve for x
x = 164,366,146,459,977.56/14,652,485.69 - Step 6: Final answer
x = 11,217,628.87
Related Problems
Find fourth proportional to 7,326,242.84, 10,110,836.19 and 4,064,108.63
Half scale
Find fourth proportional to 29,304,971.37, 40,443,344.75 and 16,256,434.52
Double scale
Find fourth proportional to 14,652,486.69, 20,221,673.76 and 8,128,218.26
Similar ratio
Find fourth proportional to 21,978,728.53, 30,332,508.56 and 12,192,325.89
1.5x scale
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.