Finding the Fourth Proportional to 20,368,318.47, 28,107,423.86 and 11,548,363.10
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Solution
The fourth proportional to 20,368,318.47, 28,107,423.86 and 11,548,363.10 is: 15,936,255.95
Step by Step Solution
- Step 1: Write the proportion equation
20,368,318.47 : 28,107,423.86 = 11,548,363.10 : x - Step 2: Convert to fraction form
20,368,318.47/28,107,423.86 = 11,548,363.10/x - Step 3: Cross multiply
20,368,318.47x = 28,107,423.86 × 11,548,363.10 - Step 4: Simplify right side
20,368,318.47x = 324,594,736,342,604.62 - Step 5: Solve for x
x = 324,594,736,342,604.62/20,368,318.47 - Step 6: Final answer
x = 15,936,255.95
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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.