Finding the Fourth Proportional to 168,978,817,660.80, 253,468,226,491.20 and 141,704,415,235.20
Calculator
Solution
The fourth proportional to 168,978,817,660.80, 253,468,226,491.20 and 141,704,415,235.20 is: 212,556,622,852.80
Step by Step Solution
- Step 1: Write the proportion equation
168,978,817,660.80 : 253,468,226,491.20 = 141,704,415,235.20 : x - Step 2: Convert to fraction form
168,978,817,660.80/253,468,226,491.20 = 141,704,415,235.20/x - Step 3: Cross multiply
168,978,817,660.80x = 253,468,226,491.20 × 141,704,415,235.20 - Step 4: Simplify right side
168,978,817,660.80x = 35,917,566,815,638,730,571,776 - Step 5: Solve for x
x = 35,917,566,815,638,730,571,776/168,978,817,660.80 - Step 6: Final answer
x = 212,556,622,852.80
Related Problems
Find fourth proportional to 84,489,408,830.40, 126,734,113,245.60 and 70,852,207,617.60
Half scale
Find fourth proportional to 337,957,635,321.60, 506,936,452,982.40 and 283,408,830,470.40
Double scale
Find fourth proportional to 168,978,817,661.80, 253,468,226,492.70 and 141,704,415,236.20
Similar ratio
Find fourth proportional to 253,468,226,491.20, 380,202,339,736.80 and 212,556,622,852.80
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.