Finding the Fourth Proportional to 20,798,433.24, 28,700,975.64 and 11,379,178.08
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Solution
The fourth proportional to 20,798,433.24, 28,700,975.64 and 11,379,178.08 is: 15,702,794.01
Step by Step Solution
- Step 1: Write the proportion equation
20,798,433.24 : 28,700,975.64 = 11,379,178.08 : x - Step 2: Convert to fraction form
20,798,433.24/28,700,975.64 = 11,379,178.08/x - Step 3: Cross multiply
20,798,433.24x = 28,700,975.64 × 11,379,178.08 - Step 4: Simplify right side
20,798,433.24x = 326,593,512,877,302 - Step 5: Solve for x
x = 326,593,512,877,302/20,798,433.24 - Step 6: Final answer
x = 15,702,794.01
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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.