Finding the Fourth Proportional to 420,820,469.78, 580,750,183.17 and 235,181,480.00
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Solution
The fourth proportional to 420,820,469.78, 580,750,183.17 and 235,181,480.00 is: 324,560,465.56
Step by Step Solution
- Step 1: Write the proportion equation
420,820,469.78 : 580,750,183.17 = 235,181,480.00 : x - Step 2: Convert to fraction form
420,820,469.78/580,750,183.17 = 235,181,480.00/x - Step 3: Cross multiply
420,820,469.78x = 580,750,183.17 × 235,181,480.00 - Step 4: Simplify right side
420,820,469.78x = 136,581,687,585,287,936 - Step 5: Solve for x
x = 136,581,687,585,287,936/420,820,469.78 - Step 6: Final answer
x = 324,560,465.56
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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.