Finding the Fourth Proportional to 20,350,524.40, 28,077,599.64 and 12,198,788.08
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Solution
The fourth proportional to 20,350,524.40, 28,077,599.64 and 12,198,788.08 is: 16,830,656.60
Step by Step Solution
- Step 1: Write the proportion equation
20,350,524.40 : 28,077,599.64 = 12,198,788.08 : x - Step 2: Convert to fraction form
20,350,524.40/28,077,599.64 = 12,198,788.08/x - Step 3: Cross multiply
20,350,524.40x = 28,077,599.64 × 12,198,788.08 - Step 4: Simplify right side
20,350,524.40x = 342,512,687,803,444.31 - Step 5: Solve for x
x = 342,512,687,803,444.31/20,350,524.40 - Step 6: Final answer
x = 16,830,656.60
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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.