Finding the Fourth Proportional to 981,235,620.12, 1,354,121,120.52 and 535,198,870.44
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Solution
The fourth proportional to 981,235,620.12, 1,354,121,120.52 and 535,198,870.44 is: 738,583,148.92
Step by Step Solution
- Step 1: Write the proportion equation
981,235,620.12 : 1,354,121,120.52 = 535,198,870.44 : x - Step 2: Convert to fraction form
981,235,620.12/1,354,121,120.52 = 535,198,870.44/x - Step 3: Cross multiply
981,235,620.12x = 1,354,121,120.52 × 535,198,870.44 - Step 4: Simplify right side
981,235,620.12x = 724,724,094,141,251,072 - Step 5: Solve for x
x = 724,724,094,141,251,072/981,235,620.12 - Step 6: Final answer
x = 738,583,148.92
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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.