Finding the Fourth Proportional to 896,830,793.10, 1,340,941,517.55 and 664,378,499.70
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Solution
The fourth proportional to 896,830,793.10, 1,340,941,517.55 and 664,378,499.70 is: 993,378,818.47
Step by Step Solution
- Step 1: Write the proportion equation
896,830,793.10 : 1,340,941,517.55 = 664,378,499.70 : x - Step 2: Convert to fraction form
896,830,793.10/1,340,941,517.55 = 664,378,499.70/x - Step 3: Cross multiply
896,830,793.10x = 1,340,941,517.55 × 664,378,499.70 - Step 4: Simplify right side
896,830,793.10x = 890,892,713,615,310,208 - Step 5: Solve for x
x = 890,892,713,615,310,208/896,830,793.10 - Step 6: Final answer
x = 993,378,818.47
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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.