Finding the Fourth Proportional to 7,936,578.84, 10,954,809.70 and 5,183,687.12
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Solution
The fourth proportional to 7,936,578.84, 10,954,809.70 and 5,183,687.12 is: 7,155,010.63
Step by Step Solution
- Step 1: Write the proportion equation
7,936,578.84 : 10,954,809.70 = 5,183,687.12 : x - Step 2: Convert to fraction form
7,936,578.84/10,954,809.70 = 5,183,687.12/x - Step 3: Cross multiply
7,936,578.84x = 10,954,809.70 × 5,183,687.12 - Step 4: Simplify right side
7,936,578.84x = 56,786,305,943,941.06 - Step 5: Solve for x
x = 56,786,305,943,941.06/7,936,578.84 - Step 6: Final answer
x = 7,155,010.63
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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.