Finding the Fourth Proportional to 369,072,714.70, 553,609,072.05 and 215,639,793.10
Calculator
Solution
The fourth proportional to 369,072,714.70, 553,609,072.05 and 215,639,793.10 is: 323,459,689.65
Step by Step Solution
- Step 1: Write the proportion equation
369,072,714.70 : 553,609,072.05 = 215,639,793.10 : x - Step 2: Convert to fraction form
369,072,714.70/553,609,072.05 = 215,639,793.10/x - Step 3: Cross multiply
369,072,714.70x = 553,609,072.05 × 215,639,793.10 - Step 4: Simplify right side
369,072,714.70x = 119,380,145,755,144,976 - Step 5: Solve for x
x = 119,380,145,755,144,976/369,072,714.70 - Step 6: Final answer
x = 323,459,689.65
Related Problems
Find fourth proportional to 184,536,357.35, 276,804,536.03 and 107,819,896.55
Half scale
Find fourth proportional to 738,145,429.40, 1,107,218,144.10 and 431,279,586.20
Double scale
Find fourth proportional to 369,072,715.70, 553,609,073.55 and 215,639,794.10
Similar ratio
Find fourth proportional to 553,609,072.05, 830,413,608.08 and 323,459,689.65
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.