Finding the Fourth Proportional to 161,138,147.68, 222,370,675.80 and 87,799,289.68
Calculator
Solution
The fourth proportional to 161,138,147.68, 222,370,675.80 and 87,799,289.68 is: 121,163,037.20
Step by Step Solution
- Step 1: Write the proportion equation
161,138,147.68 : 222,370,675.80 = 87,799,289.68 : x - Step 2: Convert to fraction form
161,138,147.68/222,370,675.80 = 87,799,289.68/x - Step 3: Cross multiply
161,138,147.68x = 222,370,675.80 × 87,799,289.68 - Step 4: Simplify right side
161,138,147.68x = 19,523,987,380,901,568 - Step 5: Solve for x
x = 19,523,987,380,901,568/161,138,147.68 - Step 6: Final answer
x = 121,163,037.20
Related Problems
Find fourth proportional to 80,569,073.84, 111,185,337.90 and 43,899,644.84
Half scale
Find fourth proportional to 322,276,295.36, 444,741,351.60 and 175,598,579.36
Double scale
Find fourth proportional to 161,138,148.68, 222,370,677.18 and 87,799,290.68
Similar ratio
Find fourth proportional to 241,707,221.52, 333,556,013.70 and 131,698,934.52
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.