Finding the Fourth Proportional to 2,977,154,198.66, 4,108,397,703.36 and 1,639,030,929.50
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Solution
The fourth proportional to 2,977,154,198.66, 4,108,397,703.36 and 1,639,030,929.50 is: 2,261,821,342.52
Step by Step Solution
- Step 1: Write the proportion equation
2,977,154,198.66 : 4,108,397,703.36 = 1,639,030,929.50 : x - Step 2: Convert to fraction form
2,977,154,198.66/4,108,397,703.36 = 1,639,030,929.50/x - Step 3: Cross multiply
2,977,154,198.66x = 4,108,397,703.36 × 1,639,030,929.50 - Step 4: Simplify right side
2,977,154,198.66x = 6,733,790,906,493,806,592 - Step 5: Solve for x
x = 6,733,790,906,493,806,592/2,977,154,198.66 - Step 6: Final answer
x = 2,261,821,342.52
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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.