Finding the Fourth Proportional to 376,025,891.93, 518,917,608.99 and 234,979,013.78
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Solution
The fourth proportional to 376,025,891.93, 518,917,608.99 and 234,979,013.78 is: 324,272,212.66
Step by Step Solution
- Step 1: Write the proportion equation
376,025,891.93 : 518,917,608.99 = 234,979,013.78 : x - Step 2: Convert to fraction form
376,025,891.93/518,917,608.99 = 234,979,013.78/x - Step 3: Cross multiply
376,025,891.93x = 518,917,608.99 × 234,979,013.78 - Step 4: Simplify right side
376,025,891.93x = 121,934,747,993,545,872 - Step 5: Solve for x
x = 121,934,747,993,545,872/376,025,891.93 - Step 6: Final answer
x = 324,272,212.66
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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.