Finding the Fourth Proportional to 338,979,497.80, 508,469,246.70 and 262,451,993.80
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Solution
The fourth proportional to 338,979,497.80, 508,469,246.70 and 262,451,993.80 is: 393,677,990.70
Step by Step Solution
- Step 1: Write the proportion equation
338,979,497.80 : 508,469,246.70 = 262,451,993.80 : x - Step 2: Convert to fraction form
338,979,497.80/508,469,246.70 = 262,451,993.80/x - Step 3: Cross multiply
338,979,497.80x = 508,469,246.70 × 262,451,993.80 - Step 4: Simplify right side
338,979,497.80x = 133,448,767,582,399,072 - Step 5: Solve for x
x = 133,448,767,582,399,072/338,979,497.80 - Step 6: Final answer
x = 393,677,990.70
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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.