Finding the Fourth Proportional to 20,453,246.57, 30,679,904.72 and 16,380,470.99
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Solution
The fourth proportional to 20,453,246.57, 30,679,904.72 and 16,380,470.99 is: 24,570,734.41
Step by Step Solution
- Step 1: Write the proportion equation
20,453,246.57 : 30,679,904.72 = 16,380,470.99 : x - Step 2: Convert to fraction form
20,453,246.57/30,679,904.72 = 16,380,470.99/x - Step 3: Cross multiply
20,453,246.57x = 30,679,904.72 × 16,380,470.99 - Step 4: Simplify right side
20,453,246.57x = 502,551,289,359,575 - Step 5: Solve for x
x = 502,551,289,359,575/20,453,246.57 - Step 6: Final answer
x = 24,570,734.41
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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.