Finding the Fourth Proportional to 268,928,976.80, 371,112,190 and 149,845,416.18
Calculator
Solution
The fourth proportional to 268,928,976.80, 371,112,190 and 149,845,416.18 is: 206,781,214.96
Step by Step Solution
- Step 1: Write the proportion equation
268,928,976.80 : 371,112,190 = 149,845,416.18 : x - Step 2: Convert to fraction form
268,928,976.80/371,112,190 = 149,845,416.18/x - Step 3: Cross multiply
268,928,976.80x = 371,112,190 × 149,845,416.18 - Step 4: Simplify right side
268,928,976.80x = 55,609,460,560,021,240 - Step 5: Solve for x
x = 55,609,460,560,021,240/268,928,976.80 - Step 6: Final answer
x = 206,781,214.96
Related Problems
Find fourth proportional to 134,464,488.40, 185,556,095 and 74,922,708.09
Half scale
Find fourth proportional to 537,857,953.60, 742,224,380 and 299,690,832.36
Double scale
Find fourth proportional to 268,928,977.80, 371,112,191.38 and 149,845,417.18
Similar ratio
Find fourth proportional to 403,393,465.20, 556,668,285 and 224,768,124.27
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.