Finding the Fourth Proportional to 505,649,440.60, 758,474,160.90 and 472,393,043.80
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Solution
The fourth proportional to 505,649,440.60, 758,474,160.90 and 472,393,043.80 is: 708,589,565.70
Step by Step Solution
- Step 1: Write the proportion equation
505,649,440.60 : 758,474,160.90 = 472,393,043.80 : x - Step 2: Convert to fraction form
505,649,440.60/758,474,160.90 = 472,393,043.80/x - Step 3: Cross multiply
505,649,440.60x = 758,474,160.90 × 472,393,043.80 - Step 4: Simplify right side
505,649,440.60x = 358,297,917,511,201,920 - Step 5: Solve for x
x = 358,297,917,511,201,920/505,649,440.60 - Step 6: Final answer
x = 708,589,565.70
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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.