Finding the Fourth Proportional to 995,328,857.20, 1,492,993,285.80 and 834,085,721.20
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Solution
The fourth proportional to 995,328,857.20, 1,492,993,285.80 and 834,085,721.20 is: 1,251,128,581.80
Step by Step Solution
- Step 1: Write the proportion equation
995,328,857.20 : 1,492,993,285.80 = 834,085,721.20 : x - Step 2: Convert to fraction form
995,328,857.20/1,492,993,285.80 = 834,085,721.20/x - Step 3: Cross multiply
995,328,857.20x = 1,492,993,285.80 × 834,085,721.20 - Step 4: Simplify right side
995,328,857.20x = 1,245,284,381,533,250,816 - Step 5: Solve for x
x = 1,245,284,381,533,250,816/995,328,857.20 - Step 6: Final answer
x = 1,251,128,581.80
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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.