Finding the Fourth Proportional to 930,876,137.80, 1,396,202,232.30 and 385,560,809.80
Calculator
Solution
The fourth proportional to 930,876,137.80, 1,396,202,232.30 and 385,560,809.80 is: 578,294,835.88
Step by Step Solution
- Step 1: Write the proportion equation
930,876,137.80 : 1,396,202,232.30 = 385,560,809.80 : x - Step 2: Convert to fraction form
930,876,137.80/1,396,202,232.30 = 385,560,809.80/x - Step 3: Cross multiply
930,876,137.80x = 1,396,202,232.30 × 385,560,809.80 - Step 4: Simplify right side
930,876,137.80x = 538,320,863,330,155,712 - Step 5: Solve for x
x = 538,320,863,330,155,712/930,876,137.80 - Step 6: Final answer
x = 578,294,835.88
Related Problems
Find fourth proportional to 465,438,068.90, 698,101,116.15 and 192,780,404.90
Half scale
Find fourth proportional to 1,861,752,275.60, 2,792,404,464.60 and 771,121,619.60
Double scale
Find fourth proportional to 930,876,138.80, 1,396,202,233.80 and 385,560,810.80
Similar ratio
Find fourth proportional to 1,396,314,206.70, 2,094,303,348.45 and 578,341,214.70
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.