Finding the Fourth Proportional to 651,611,013.40, 977,440,139.70 and 191,595,683.80
Calculator
Solution
The fourth proportional to 651,611,013.40, 977,440,139.70 and 191,595,683.80 is: 287,400,470.66
Step by Step Solution
- Step 1: Write the proportion equation
651,611,013.40 : 977,440,139.70 = 191,595,683.80 : x - Step 2: Convert to fraction form
651,611,013.40/977,440,139.70 = 191,595,683.80/x - Step 3: Cross multiply
651,611,013.40x = 977,440,139.70 × 191,595,683.80 - Step 4: Simplify right side
651,611,013.40x = 187,273,311,939,389,056 - Step 5: Solve for x
x = 187,273,311,939,389,056/651,611,013.40 - Step 6: Final answer
x = 287,400,470.66
Related Problems
Find fourth proportional to 325,805,506.70, 488,720,069.85 and 95,797,841.90
Half scale
Find fourth proportional to 1,303,222,026.80, 1,954,880,279.40 and 383,191,367.60
Double scale
Find fourth proportional to 651,611,014.40, 977,440,141.20 and 191,595,684.80
Similar ratio
Find fourth proportional to 977,416,520.10, 1,466,160,209.55 and 287,393,525.70
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.