Finding the Fourth Proportional to 1,180,090,207.20, 1,770,135,310.80 and 567,870,175.20
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Solution
The fourth proportional to 1,180,090,207.20, 1,770,135,310.80 and 567,870,175.20 is: 851,805,262.80
Step by Step Solution
- Step 1: Write the proportion equation
1,180,090,207.20 : 1,770,135,310.80 = 567,870,175.20 : x - Step 2: Convert to fraction form
1,180,090,207.20/1,770,135,310.80 = 567,870,175.20/x - Step 3: Cross multiply
1,180,090,207.20x = 1,770,135,310.80 × 567,870,175.20 - Step 4: Simplify right side
1,180,090,207.20x = 1,005,207,049,071,702,528 - Step 5: Solve for x
x = 1,005,207,049,071,702,528/1,180,090,207.20 - Step 6: Final answer
x = 851,805,262.80
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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.