Finding the Fourth Proportional to 720,236,427.20, 1,011,051,976 and 720,236,427.20
Calculator
Solution
The fourth proportional to 720,236,427.20, 1,011,051,976 and 720,236,427.20 is: 1,011,051,976
Step by Step Solution
- Step 1: Write the proportion equation
720,236,427.20 : 1,011,051,976 = 720,236,427.20 : x - Step 2: Convert to fraction form
720,236,427.20/1,011,051,976 = 720,236,427.20/x - Step 3: Cross multiply
720,236,427.20x = 1,011,051,976 × 720,236,427.20 - Step 4: Simplify right side
720,236,427.20x = 728,196,462,907,740,160 - Step 5: Solve for x
x = 728,196,462,907,740,160/720,236,427.20 - Step 6: Final answer
x = 1,011,051,976
Related Problems
Find fourth proportional to 360,118,213.60, 505,525,988 and 360,118,213.60
Half scale
Find fourth proportional to 1,440,472,854.40, 2,022,103,952 and 1,440,472,854.40
Double scale
Find fourth proportional to 720,236,428.20, 1,011,051,977.40 and 720,236,428.20
Similar ratio
Find fourth proportional to 1,080,354,640.80, 1,516,577,964 and 1,080,354,640.80
1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.