Finding the Fourth Proportional to 1,647,363,421.47, 2,273,405,916.48 and 969,227,708.85
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Solution
The fourth proportional to 1,647,363,421.47, 2,273,405,916.48 and 969,227,708.85 is: 1,337,560,357.96
Step by Step Solution
- Step 1: Write the proportion equation
1,647,363,421.47 : 2,273,405,916.48 = 969,227,708.85 : x - Step 2: Convert to fraction form
1,647,363,421.47/2,273,405,916.48 = 969,227,708.85/x - Step 3: Cross multiply
1,647,363,421.47x = 2,273,405,916.48 × 969,227,708.85 - Step 4: Simplify right side
1,647,363,421.47x = 2,203,448,007,715,944,960 - Step 5: Solve for x
x = 2,203,448,007,715,944,960/1,647,363,421.47 - Step 6: Final answer
x = 1,337,560,357.96
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1.5x scale
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.