Finding the Fourth Proportional to 20,368,152.24, 28,107,194.81 and 11,548,197.02
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Solution
The fourth proportional to 20,368,152.24, 28,107,194.81 and 11,548,197.02 is: 15,936,026.96
Step by Step Solution
- Step 1: Write the proportion equation
20,368,152.24 : 28,107,194.81 = 11,548,197.02 : x - Step 2: Convert to fraction form
20,368,152.24/28,107,194.81 = 11,548,197.02/x - Step 3: Cross multiply
20,368,152.24x = 28,107,194.81 × 11,548,197.02 - Step 4: Simplify right side
20,368,152.24x = 324,587,423,175,995 - Step 5: Solve for x
x = 324,587,423,175,995/20,368,152.24 - Step 6: Final answer
x = 15,936,026.96
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.