Finding the Fourth Proportional to 852,110,467.70, 1,278,165,701.55 and 438,861,946.10
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Solution
The fourth proportional to 852,110,467.70, 1,278,165,701.55 and 438,861,946.10 is: 658,292,919.15
Step by Step Solution
- Step 1: Write the proportion equation
852,110,467.70 : 1,278,165,701.55 = 438,861,946.10 : x - Step 2: Convert to fraction form
852,110,467.70/1,278,165,701.55 = 438,861,946.10/x - Step 3: Cross multiply
852,110,467.70x = 1,278,165,701.55 × 438,861,946.10 - Step 4: Simplify right side
852,110,467.70x = 560,938,287,220,504,768 - Step 5: Solve for x
x = 560,938,287,220,504,768/852,110,467.70 - Step 6: Final answer
x = 658,292,919.15
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Similar ratio
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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.