Finding the Fourth Proportional to 404,644,639.24, 558,423,142.69 and 247,981,491.91
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Solution
The fourth proportional to 404,644,639.24, 558,423,142.69 and 247,981,491.91 is: 342,222,756.99
Step by Step Solution
- Step 1: Write the proportion equation
404,644,639.24 : 558,423,142.69 = 247,981,491.91 : x - Step 2: Convert to fraction form
404,644,639.24/558,423,142.69 = 247,981,491.91/x - Step 3: Cross multiply
404,644,639.24x = 558,423,142.69 × 247,981,491.91 - Step 4: Simplify right side
404,644,639.24x = 138,478,604,038,544,912 - Step 5: Solve for x
x = 138,478,604,038,544,912/404,644,639.24 - Step 6: Final answer
x = 342,222,756.99
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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.