Finding the Fourth Proportional to 319,788,181.26, 441,310,732.42 and 187,631,426.28
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Solution
The fourth proportional to 319,788,181.26, 441,310,732.42 and 187,631,426.28 is: 258,933,153.28
Step by Step Solution
- Step 1: Write the proportion equation
319,788,181.26 : 441,310,732.42 = 187,631,426.28 : x - Step 2: Convert to fraction form
319,788,181.26/441,310,732.42 = 187,631,426.28/x - Step 3: Cross multiply
319,788,181.26x = 441,310,732.42 × 187,631,426.28 - Step 4: Simplify right side
319,788,181.26x = 82,803,762,156,636,032 - Step 5: Solve for x
x = 82,803,762,156,636,032/319,788,181.26 - Step 6: Final answer
x = 258,933,153.28
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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.