Finding the Fourth Proportional to 651,672,929.70, 978,643,135.35 and 345,562,913.70
Calculator
Solution
The fourth proportional to 651,672,929.70, 978,643,135.35 and 345,562,913.70 is: 518,945,559.82
Step by Step Solution
- Step 1: Write the proportion equation
651,672,929.70 : 978,643,135.35 = 345,562,913.70 : x - Step 2: Convert to fraction form
651,672,929.70/978,643,135.35 = 345,562,913.70/x - Step 3: Cross multiply
651,672,929.70x = 978,643,135.35 × 345,562,913.70 - Step 4: Simplify right side
651,672,929.70x = 338,182,773,324,049,472 - Step 5: Solve for x
x = 338,182,773,324,049,472/651,672,929.70 - Step 6: Final answer
x = 518,945,559.82
Related Problems
Find fourth proportional to 325,836,464.85, 489,321,567.68 and 172,781,456.85
Half scale
Find fourth proportional to 1,303,345,859.40, 1,957,286,270.70 and 691,125,827.40
Double scale
Find fourth proportional to 651,672,930.70, 978,643,136.85 and 345,562,914.70
Similar ratio
Find fourth proportional to 977,509,394.55, 1,467,964,703.03 and 518,344,370.55
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.