Finding the Fourth Proportional to 791,460,566.40, 1,187,190,849.60 and 664,481,596.80
Calculator
Solution
The fourth proportional to 791,460,566.40, 1,187,190,849.60 and 664,481,596.80 is: 996,722,395.20
Step by Step Solution
- Step 1: Write the proportion equation
791,460,566.40 : 1,187,190,849.60 = 664,481,596.80 : x - Step 2: Convert to fraction form
791,460,566.40/1,187,190,849.60 = 664,481,596.80/x - Step 3: Cross multiply
791,460,566.40x = 1,187,190,849.60 × 664,481,596.80 - Step 4: Simplify right side
791,460,566.40x = 788,866,471,448,556,544 - Step 5: Solve for x
x = 788,866,471,448,556,544/791,460,566.40 - Step 6: Final answer
x = 996,722,395.20
Related Problems
Find fourth proportional to 395,730,283.20, 593,595,424.80 and 332,240,798.40
Half scale
Find fourth proportional to 1,582,921,132.80, 2,374,381,699.20 and 1,328,963,193.60
Double scale
Find fourth proportional to 791,460,567.40, 1,187,190,851.10 and 664,481,597.80
Similar ratio
Find fourth proportional to 1,187,190,849.60, 1,780,786,274.40 and 996,722,395.20
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.