Finding the Fourth Proportional to 20,447,736.20, 30,618,460.20 and 16,160,778.80
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Solution
The fourth proportional to 20,447,736.20, 30,618,460.20 and 16,160,778.80 is: 24,199,165.99
Step by Step Solution
- Step 1: Write the proportion equation
20,447,736.20 : 30,618,460.20 = 16,160,778.80 : x - Step 2: Convert to fraction form
20,447,736.20/30,618,460.20 = 16,160,778.80/x - Step 3: Cross multiply
20,447,736.20x = 30,618,460.20 × 16,160,778.80 - Step 4: Simplify right side
20,447,736.20x = 494,818,162,488,803.75 - Step 5: Solve for x
x = 494,818,162,488,803.75/20,447,736.20 - Step 6: Final answer
x = 24,199,165.99
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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.