Finding the Fourth Proportional to 35,673,601.68, 49,228,732.93 and 20,990,218.95
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Solution
The fourth proportional to 35,673,601.68, 49,228,732.93 and 20,990,218.95 is: 28,966,009.43
Step by Step Solution
- Step 1: Write the proportion equation
35,673,601.68 : 49,228,732.93 = 20,990,218.95 : x - Step 2: Convert to fraction form
35,673,601.68/49,228,732.93 = 20,990,218.95/x - Step 3: Cross multiply
35,673,601.68x = 49,228,732.93 × 20,990,218.95 - Step 4: Simplify right side
35,673,601.68x = 1,033,321,882,726,823.88 - Step 5: Solve for x
x = 1,033,321,882,726,823.88/35,673,601.68 - Step 6: Final answer
x = 28,966,009.43
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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.