Finding the Fourth Proportional to 744,673,645.80, 1,117,010,468.70 and 486,393,319.80
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Solution
The fourth proportional to 744,673,645.80, 1,117,010,468.70 and 486,393,319.80 is: 729,589,979.70
Step by Step Solution
- Step 1: Write the proportion equation
744,673,645.80 : 1,117,010,468.70 = 486,393,319.80 : x - Step 2: Convert to fraction form
744,673,645.80/1,117,010,468.70 = 486,393,319.80/x - Step 3: Cross multiply
744,673,645.80x = 1,117,010,468.70 × 486,393,319.80 - Step 4: Simplify right side
744,673,645.80x = 543,306,430,122,347,008 - Step 5: Solve for x
x = 543,306,430,122,347,008/744,673,645.80 - Step 6: Final answer
x = 729,589,979.70
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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.