Finding the Fourth Proportional to 373,685,681.75, 515,676,249.79 and 206,418,342.95
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Solution
The fourth proportional to 373,685,681.75, 515,676,249.79 and 206,418,342.95 is: 284,851,794.37
Step by Step Solution
- Step 1: Write the proportion equation
373,685,681.75 : 515,676,249.79 = 206,418,342.95 : x - Step 2: Convert to fraction form
373,685,681.75/515,676,249.79 = 206,418,342.95/x - Step 3: Cross multiply
373,685,681.75x = 515,676,249.79 × 206,418,342.95 - Step 4: Simplify right side
373,685,681.75x = 106,445,036,977,227,664 - Step 5: Solve for x
x = 106,445,036,977,227,664/373,685,681.75 - Step 6: Final answer
x = 284,851,794.37
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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.