Finding the Fourth Proportional to 1,647,704,967.10, 2,271,669,163.23 and 1,189,029,613.30
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Solution
The fourth proportional to 1,647,704,967.10, 2,271,669,163.23 and 1,189,029,613.30 is: 1,639,299,486.64
Step by Step Solution
- Step 1: Write the proportion equation
1,647,704,967.10 : 2,271,669,163.23 = 1,189,029,613.30 : x - Step 2: Convert to fraction form
1,647,704,967.10/2,271,669,163.23 = 1,189,029,613.30/x - Step 3: Cross multiply
1,647,704,967.10x = 2,271,669,163.23 × 1,189,029,613.30 - Step 4: Simplify right side
1,647,704,967.10x = 2,701,081,906,700,901,376 - Step 5: Solve for x
x = 2,701,081,906,700,901,376/1,647,704,967.10 - Step 6: Final answer
x = 1,639,299,486.64
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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.