Finding the Fourth Proportional to 20,390,246.84, 30,585,452.73 and 8,259,939.73
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Solution
The fourth proportional to 20,390,246.84, 30,585,452.73 and 8,259,939.73 is: 12,389,943.00
Step by Step Solution
- Step 1: Write the proportion equation
20,390,246.84 : 30,585,452.73 = 8,259,939.73 : x - Step 2: Convert to fraction form
20,390,246.84/30,585,452.73 = 8,259,939.73/x - Step 3: Cross multiply
20,390,246.84x = 30,585,452.73 × 8,259,939.73 - Step 4: Simplify right side
20,390,246.84x = 252,633,996,164,563.97 - Step 5: Solve for x
x = 252,633,996,164,563.97/20,390,246.84 - Step 6: Final answer
x = 12,389,943.00
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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.