Finding the Fourth Proportional to 2,587,112.20, 3,880,668.30 and 2,545,121.80
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Solution
The fourth proportional to 2,587,112.20, 3,880,668.30 and 2,545,121.80 is: 3,817,682.70
Step by Step Solution
- Step 1: Write the proportion equation
2,587,112.20 : 3,880,668.30 = 2,545,121.80 : x - Step 2: Convert to fraction form
2,587,112.20/3,880,668.30 = 2,545,121.80/x - Step 3: Cross multiply
2,587,112.20x = 3,880,668.30 × 2,545,121.80 - Step 4: Simplify right side
2,587,112.20x = 9,876,773,488,898.94 - Step 5: Solve for x
x = 9,876,773,488,898.94/2,587,112.20 - Step 6: Final answer
x = 3,817,682.70
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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.