Finding the Fourth Proportional to 827,584,964.20, 1,241,377,446.30 and 679,631,789.80
Calculator
Solution
The fourth proportional to 827,584,964.20, 1,241,377,446.30 and 679,631,789.80 is: 1,019,447,684.70
Step by Step Solution
- Step 1: Write the proportion equation
827,584,964.20 : 1,241,377,446.30 = 679,631,789.80 : x - Step 2: Convert to fraction form
827,584,964.20/1,241,377,446.30 = 679,631,789.80/x - Step 3: Cross multiply
827,584,964.20x = 1,241,377,446.30 × 679,631,789.80 - Step 4: Simplify right side
827,584,964.20x = 843,679,575,646,222,336 - Step 5: Solve for x
x = 843,679,575,646,222,336/827,584,964.20 - Step 6: Final answer
x = 1,019,447,684.70
Related Problems
Find fourth proportional to 413,792,482.10, 620,688,723.15 and 339,815,894.90
Half scale
Find fourth proportional to 1,655,169,928.40, 2,482,754,892.60 and 1,359,263,579.60
Double scale
Find fourth proportional to 827,584,965.20, 1,241,377,447.80 and 679,631,790.80
Similar ratio
Find fourth proportional to 1,241,377,446.30, 1,862,066,169.45 and 1,019,447,684.70
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.