Finding the Fourth Proportional to 186,209,361.51, 256,976,891.42 and 103,703,145.99
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Solution
The fourth proportional to 186,209,361.51, 256,976,891.42 and 103,703,145.99 is: 143,114,781.50
Step by Step Solution
- Step 1: Write the proportion equation
186,209,361.51 : 256,976,891.42 = 103,703,145.99 : x - Step 2: Convert to fraction form
186,209,361.51/256,976,891.42 = 103,703,145.99/x - Step 3: Cross multiply
186,209,361.51x = 256,976,891.42 × 103,703,145.99 - Step 4: Simplify right side
186,209,361.51x = 26,649,312,086,466,120 - Step 5: Solve for x
x = 26,649,312,086,466,120/186,209,361.51 - Step 6: Final answer
x = 143,114,781.50
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.