Finding the Fourth Proportional to 793,313,809.80, 1,189,970,714.70 and 470,827,537.80
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Solution
The fourth proportional to 793,313,809.80, 1,189,970,714.70 and 470,827,537.80 is: 706,241,306.70
Step by Step Solution
- Step 1: Write the proportion equation
793,313,809.80 : 1,189,970,714.70 = 470,827,537.80 : x - Step 2: Convert to fraction form
793,313,809.80/1,189,970,714.70 = 470,827,537.80/x - Step 3: Cross multiply
793,313,809.80x = 1,189,970,714.70 × 470,827,537.80 - Step 4: Simplify right side
793,313,809.80x = 560,270,981,656,307,328 - Step 5: Solve for x
x = 560,270,981,656,307,328/793,313,809.80 - Step 6: Final answer
x = 706,241,306.70
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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.