Finding the Fourth Proportional to 18,288,856.80, 27,424,990.80 and 6,925,528.80
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Solution
The fourth proportional to 18,288,856.80, 27,424,990.80 and 6,925,528.80 is: 10,385,152.32
Step by Step Solution
- Step 1: Write the proportion equation
18,288,856.80 : 27,424,990.80 = 6,925,528.80 : x - Step 2: Convert to fraction form
18,288,856.80/27,424,990.80 = 6,925,528.80/x - Step 3: Cross multiply
18,288,856.80x = 27,424,990.80 × 6,925,528.80 - Step 4: Simplify right side
18,288,856.80x = 189,932,563,625,135.03 - Step 5: Solve for x
x = 189,932,563,625,135.03/18,288,856.80 - Step 6: Final answer
x = 10,385,152.32
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.