Finding the Fourth Proportional to 7,255,747.88, 10,883,621.76 and 2,645,079.90
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Solution
The fourth proportional to 7,255,747.88, 10,883,621.76 and 2,645,079.90 is: 3,967,619.83
Step by Step Solution
- Step 1: Write the proportion equation
7,255,747.88 : 10,883,621.76 = 2,645,079.90 : x - Step 2: Convert to fraction form
7,255,747.88/10,883,621.76 = 2,645,079.90/x - Step 3: Cross multiply
7,255,747.88x = 10,883,621.76 × 2,645,079.90 - Step 4: Simplify right side
7,255,747.88x = 28,788,049,156,578.62 - Step 5: Solve for x
x = 28,788,049,156,578.62/7,255,747.88 - Step 6: Final answer
x = 3,967,619.83
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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.