Finding the Fourth Proportional to 296,985,296.07, 408,386,028.69 and 257,758,761.06
Calculator
Solution
The fourth proportional to 296,985,296.07, 408,386,028.69 and 257,758,761.06 is: 354,445,415.93
Step by Step Solution
- Step 1: Write the proportion equation
296,985,296.07 : 408,386,028.69 = 257,758,761.06 : x - Step 2: Convert to fraction form
296,985,296.07/408,386,028.69 = 257,758,761.06/x - Step 3: Cross multiply
296,985,296.07x = 408,386,028.69 × 257,758,761.06 - Step 4: Simplify right side
296,985,296.07x = 105,265,076,789,348,016 - Step 5: Solve for x
x = 105,265,076,789,348,016/296,985,296.07 - Step 6: Final answer
x = 354,445,415.93
Related Problems
Find fourth proportional to 148,492,648.04, 204,193,014.35 and 128,879,380.53
Half scale
Find fourth proportional to 593,970,592.14, 816,772,057.38 and 515,517,522.12
Double scale
Find fourth proportional to 296,985,297.07, 408,386,030.07 and 257,758,762.06
Similar ratio
Find fourth proportional to 445,477,944.11, 612,579,043.04 and 386,638,141.59
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.