Finding the Fourth Proportional to 39,279,340.05, 54,207,171.03 and 21,875,685.18
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Solution
The fourth proportional to 39,279,340.05, 54,207,171.03 and 21,875,685.18 is: 30,189,382.16
Step by Step Solution
- Step 1: Write the proportion equation
39,279,340.05 : 54,207,171.03 = 21,875,685.18 : x - Step 2: Convert to fraction form
39,279,340.05/54,207,171.03 = 21,875,685.18/x - Step 3: Cross multiply
39,279,340.05x = 54,207,171.03 × 21,875,685.18 - Step 4: Simplify right side
39,279,340.05x = 1,185,819,007,950,696.25 - Step 5: Solve for x
x = 1,185,819,007,950,696.25/39,279,340.05 - Step 6: Final answer
x = 30,189,382.16
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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.