Finding the Fourth Proportional to 11,128,237.92, 15,390,777.60 and 9,981,900
Calculator
Solution
The fourth proportional to 11,128,237.92, 15,390,777.60 and 9,981,900 is: 13,805,348.52
Step by Step Solution
- Step 1: Write the proportion equation
11,128,237.92 : 15,390,777.60 = 9,981,900 : x - Step 2: Convert to fraction form
11,128,237.92/15,390,777.60 = 9,981,900/x - Step 3: Cross multiply
11,128,237.92x = 15,390,777.60 × 9,981,900 - Step 4: Simplify right side
11,128,237.92x = 153,629,202,925,440 - Step 5: Solve for x
x = 153,629,202,925,440/11,128,237.92 - Step 6: Final answer
x = 13,805,348.52
Related Problems
Find fourth proportional to 5,564,118.96, 7,695,388.80 and 4,990,950
Half scale
Find fourth proportional to 22,256,475.84, 30,781,555.20 and 19,963,800
Double scale
Find fourth proportional to 11,128,238.92, 15,390,778.98 and 9,981,901
Similar ratio
Find fourth proportional to 16,692,356.88, 23,086,166.40 and 14,972,850
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.