Finding the Fourth Proportional to 87,228,517,491.78, 120,375,354,370.38 and 47,130,496,880.28
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Solution
The fourth proportional to 87,228,517,491.78, 120,375,354,370.38 and 47,130,496,880.28 is: 65,040,085,819.99
Step by Step Solution
- Step 1: Write the proportion equation
87,228,517,491.78 : 120,375,354,370.38 = 47,130,496,880.28 : x - Step 2: Convert to fraction form
87,228,517,491.78/120,375,354,370.38 = 47,130,496,880.28/x - Step 3: Cross multiply
87,228,517,491.78x = 120,375,354,370.38 × 47,130,496,880.28 - Step 4: Simplify right side
87,228,517,491.78x = 5,673,350,263,615,794,446,336 - Step 5: Solve for x
x = 5,673,350,263,615,794,446,336/87,228,517,491.78 - Step 6: Final answer
x = 65,040,085,819.99
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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.