Finding the Fourth Proportional to 663,648,163.20, 995,472,244.80 and 663,648,163.20
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Solution
The fourth proportional to 663,648,163.20, 995,472,244.80 and 663,648,163.20 is: 995,472,244.80
Step by Step Solution
- Step 1: Write the proportion equation
663,648,163.20 : 995,472,244.80 = 663,648,163.20 : x - Step 2: Convert to fraction form
663,648,163.20/995,472,244.80 = 663,648,163.20/x - Step 3: Cross multiply
663,648,163.20x = 995,472,244.80 × 663,648,163.20 - Step 4: Simplify right side
663,648,163.20x = 660,643,326,778,100,736 - Step 5: Solve for x
x = 660,643,326,778,100,736/663,648,163.20 - Step 6: Final answer
x = 995,472,244.80
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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.