Finding the Fourth Proportional to 18,641,964.74, 25,726,709.49 and 10,382,026.99
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Solution
The fourth proportional to 18,641,964.74, 25,726,709.49 and 10,382,026.99 is: 14,327,641.75
Step by Step Solution
- Step 1: Write the proportion equation
18,641,964.74 : 25,726,709.49 = 10,382,026.99 : x - Step 2: Convert to fraction form
18,641,964.74/25,726,709.49 = 10,382,026.99/x - Step 3: Cross multiply
18,641,964.74x = 25,726,709.49 × 10,382,026.99 - Step 4: Simplify right side
18,641,964.74x = 267,095,392,289,069.12 - Step 5: Solve for x
x = 267,095,392,289,069.12/18,641,964.74 - Step 6: Final answer
x = 14,327,641.75
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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.