Finding the Fourth Proportional to 476,928,000.20, 715,392,000.30 and 331,809,177.80
Calculator
Solution
The fourth proportional to 476,928,000.20, 715,392,000.30 and 331,809,177.80 is: 497,713,766.70
Step by Step Solution
- Step 1: Write the proportion equation
476,928,000.20 : 715,392,000.30 = 331,809,177.80 : x - Step 2: Convert to fraction form
476,928,000.20/715,392,000.30 = 331,809,177.80/x - Step 3: Cross multiply
476,928,000.20x = 715,392,000.30 × 331,809,177.80 - Step 4: Simplify right side
476,928,000.20x = 237,373,631,424,240,352 - Step 5: Solve for x
x = 237,373,631,424,240,352/476,928,000.20 - Step 6: Final answer
x = 497,713,766.70
Related Problems
Find fourth proportional to 238,464,000.10, 357,696,000.15 and 165,904,588.90
Half scale
Find fourth proportional to 953,856,000.40, 1,430,784,000.60 and 663,618,355.60
Double scale
Find fourth proportional to 476,928,001.20, 715,392,001.80 and 331,809,178.80
Similar ratio
Find fourth proportional to 715,392,000.30, 1,073,088,000.45 and 497,713,766.70
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.