Finding the Fourth Proportional to 208,513,425.92, 310,927,899.08 and 206,641,902.42
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Solution
The fourth proportional to 208,513,425.92, 310,927,899.08 and 206,641,902.42 is: 308,137,148.96
Step by Step Solution
- Step 1: Write the proportion equation
208,513,425.92 : 310,927,899.08 = 206,641,902.42 : x - Step 2: Convert to fraction form
208,513,425.92/310,927,899.08 = 206,641,902.42/x - Step 3: Cross multiply
208,513,425.92x = 310,927,899.08 × 206,641,902.42 - Step 4: Simplify right side
208,513,425.92x = 64,250,732,581,861,568 - Step 5: Solve for x
x = 64,250,732,581,861,568/208,513,425.92 - Step 6: Final answer
x = 308,137,148.96
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Why These Related Problems?
These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.