Finding the Fourth Proportional to 664,467,349.20, 996,701,023.80 and 664,467,349.20
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Solution
The fourth proportional to 664,467,349.20, 996,701,023.80 and 664,467,349.20 is: 996,701,023.80
Step by Step Solution
- Step 1: Write the proportion equation
664,467,349.20 : 996,701,023.80 = 664,467,349.20 : x - Step 2: Convert to fraction form
664,467,349.20/996,701,023.80 = 664,467,349.20/x - Step 3: Cross multiply
664,467,349.20x = 996,701,023.80 × 664,467,349.20 - Step 4: Simplify right side
664,467,349.20x = 662,275,287,229,312,128 - Step 5: Solve for x
x = 662,275,287,229,312,128/664,467,349.20 - Step 6: Final answer
x = 996,701,023.80
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Double scale
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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.