Finding the Fourth Proportional to 20,649,684.25, 28,497,260.04 and 11,357,645.44
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Solution
The fourth proportional to 20,649,684.25, 28,497,260.04 and 11,357,645.44 is: 15,673,933.39
Step by Step Solution
- Step 1: Write the proportion equation
20,649,684.25 : 28,497,260.04 = 11,357,645.44 : x - Step 2: Convert to fraction form
20,649,684.25/28,497,260.04 = 11,357,645.44/x - Step 3: Cross multiply
20,649,684.25x = 28,497,260.04 × 11,357,645.44 - Step 4: Simplify right side
20,649,684.25x = 323,661,775,545,800.19 - Step 5: Solve for x
x = 323,661,775,545,800.19/20,649,684.25 - Step 6: Final answer
x = 15,673,933.39
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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.