Finding the Fourth Proportional to 39,375,815.70, 54,991,772.70 and 39,375,815.70
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Solution
The fourth proportional to 39,375,815.70, 54,991,772.70 and 39,375,815.70 is: 54,991,772.70
Step by Step Solution
- Step 1: Write the proportion equation
39,375,815.70 : 54,991,772.70 = 39,375,815.70 : x - Step 2: Convert to fraction form
39,375,815.70/54,991,772.70 = 39,375,815.70/x - Step 3: Cross multiply
39,375,815.70x = 54,991,772.70 × 39,375,815.70 - Step 4: Simplify right side
39,375,815.70x = 2,165,345,906,851,491.75 - Step 5: Solve for x
x = 2,165,345,906,851,491.75/39,375,815.70 - Step 6: Final answer
x = 54,991,772.70
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Why These Related Problems?
These problems maintain the same ratio (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.