Finding the Fourth Proportional to 4,812,716.95, 7,218,809.74 and 1,617,513.19
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Solution
The fourth proportional to 4,812,716.95, 7,218,809.74 and 1,617,513.19 is: 2,426,180.49
Step by Step Solution
- Step 1: Write the proportion equation
4,812,716.95 : 7,218,809.74 = 1,617,513.19 : x - Step 2: Convert to fraction form
4,812,716.95/7,218,809.74 = 1,617,513.19/x - Step 3: Cross multiply
4,812,716.95x = 7,218,809.74 × 1,617,513.19 - Step 4: Simplify right side
4,812,716.95x = 11,676,519,970,550.47 - Step 5: Solve for x
x = 11,676,519,970,550.47/4,812,716.95 - Step 6: Final answer
x = 2,426,180.49
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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.