Finding the Fourth Proportional to 1,497,738,700.80, 2,246,608,051.20 and 681,445,324.80
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Solution
The fourth proportional to 1,497,738,700.80, 2,246,608,051.20 and 681,445,324.80 is: 1,022,167,987.20
Step by Step Solution
- Step 1: Write the proportion equation
1,497,738,700.80 : 2,246,608,051.20 = 681,445,324.80 : x - Step 2: Convert to fraction form
1,497,738,700.80/2,246,608,051.20 = 681,445,324.80/x - Step 3: Cross multiply
1,497,738,700.80x = 2,246,608,051.20 × 681,445,324.80 - Step 4: Simplify right side
1,497,738,700.80x = 1,530,940,553,148,278,784 - Step 5: Solve for x
x = 1,530,940,553,148,278,784/1,497,738,700.80 - Step 6: Final answer
x = 1,022,167,987.20
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.