Finding the Fourth Proportional to 20,793,631.60, 31,169,452.20 and 9,442,226.80
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Solution
The fourth proportional to 20,793,631.60, 31,169,452.20 and 9,442,226.80 is: 14,153,806.44
Step by Step Solution
- Step 1: Write the proportion equation
20,793,631.60 : 31,169,452.20 = 9,442,226.80 : x - Step 2: Convert to fraction form
20,793,631.60/31,169,452.20 = 9,442,226.80/x - Step 3: Cross multiply
20,793,631.60x = 31,169,452.20 × 9,442,226.80 - Step 4: Simplify right side
20,793,631.60x = 294,309,036,904,159 - Step 5: Solve for x
x = 294,309,036,904,159/20,793,631.60 - Step 6: Final answer
x = 14,153,806.44
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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.