Finding the Fourth Proportional to 7,381,975.80, 11,072,963.70 and 2,894,251.80
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Solution
The fourth proportional to 7,381,975.80, 11,072,963.70 and 2,894,251.80 is: 4,341,377.70
Step by Step Solution
- Step 1: Write the proportion equation
7,381,975.80 : 11,072,963.70 = 2,894,251.80 : x - Step 2: Convert to fraction form
7,381,975.80/11,072,963.70 = 2,894,251.80/x - Step 3: Cross multiply
7,381,975.80x = 11,072,963.70 × 2,894,251.80 - Step 4: Simplify right side
7,381,975.80x = 32,047,945,120,059.66 - Step 5: Solve for x
x = 32,047,945,120,059.66/7,381,975.80 - Step 6: Final answer
x = 4,341,377.70
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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.