Finding the Fourth Proportional to 437,815,260.60, 656,289,738.90 and 207,379,318.20
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Solution
The fourth proportional to 437,815,260.60, 656,289,738.90 and 207,379,318.20 is: 310,863,806.82
Step by Step Solution
- Step 1: Write the proportion equation
437,815,260.60 : 656,289,738.90 = 207,379,318.20 : x - Step 2: Convert to fraction form
437,815,260.60/656,289,738.90 = 207,379,318.20/x - Step 3: Cross multiply
437,815,260.60x = 656,289,738.90 × 207,379,318.20 - Step 4: Simplify right side
437,815,260.60x = 136,100,918,594,738,000 - Step 5: Solve for x
x = 136,100,918,594,738,000/437,815,260.60 - Step 6: Final answer
x = 310,863,806.82
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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.