Finding the Fourth Proportional to 206,079,911.92, 309,175,618.92 and 69,765,307.12
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Solution
The fourth proportional to 206,079,911.92, 309,175,618.92 and 69,765,307.12 is: 104,666,834.37
Step by Step Solution
- Step 1: Write the proportion equation
206,079,911.92 : 309,175,618.92 = 69,765,307.12 : x - Step 2: Convert to fraction form
206,079,911.92/309,175,618.92 = 69,765,307.12/x - Step 3: Cross multiply
206,079,911.92x = 309,175,618.92 × 69,765,307.12 - Step 4: Simplify right side
206,079,911.92x = 21,569,732,007,969,884 - Step 5: Solve for x
x = 21,569,732,007,969,884/206,079,911.92 - Step 6: Final answer
x = 104,666,834.37
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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.