Finding the Fourth Proportional to 20,892,634.46, 31,339,181.19 and 6,319,701.98
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Solution
The fourth proportional to 20,892,634.46, 31,339,181.19 and 6,319,701.98 is: 9,479,622.39
Step by Step Solution
- Step 1: Write the proportion equation
20,892,634.46 : 31,339,181.19 = 6,319,701.98 : x - Step 2: Convert to fraction form
20,892,634.46/31,339,181.19 = 6,319,701.98/x - Step 3: Cross multiply
20,892,634.46x = 31,339,181.19 × 6,319,701.98 - Step 4: Simplify right side
20,892,634.46x = 198,054,285,418,021.78 - Step 5: Solve for x
x = 198,054,285,418,021.78/20,892,634.46 - Step 6: Final answer
x = 9,479,622.39
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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.