Finding the Fourth Proportional to 27,578,620.68, 38,057,268.59 and 15,809,451.49
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Solution
The fourth proportional to 27,578,620.68, 38,057,268.59 and 15,809,451.49 is: 21,816,339.14
Step by Step Solution
- Step 1: Write the proportion equation
27,578,620.68 : 38,057,268.59 = 15,809,451.49 : x - Step 2: Convert to fraction form
27,578,620.68/38,057,268.59 = 15,809,451.49/x - Step 3: Cross multiply
27,578,620.68x = 38,057,268.59 × 15,809,451.49 - Step 4: Simplify right side
27,578,620.68x = 601,664,541,643,315.50 - Step 5: Solve for x
x = 601,664,541,643,315.50/27,578,620.68 - Step 6: Final answer
x = 21,816,339.14
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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.