Finding the Fourth Proportional to 22,378,876.88, 30,882,804.36 and 12,589,327.76
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Solution
The fourth proportional to 22,378,876.88, 30,882,804.36 and 12,589,327.76 is: 17,373,246.58
Step by Step Solution
- Step 1: Write the proportion equation
22,378,876.88 : 30,882,804.36 = 12,589,327.76 : x - Step 2: Convert to fraction form
22,378,876.88/30,882,804.36 = 12,589,327.76/x - Step 3: Cross multiply
22,378,876.88x = 30,882,804.36 × 12,589,327.76 - Step 4: Simplify right side
22,378,876.88x = 388,793,746,235,997 - Step 5: Solve for x
x = 388,793,746,235,997/22,378,876.88 - Step 6: Final answer
x = 17,373,246.58
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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.