Finding the Fourth Proportional to 274,545,487.74, 411,833,795.34 and 87,815,832.36
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Solution
The fourth proportional to 274,545,487.74, 411,833,795.34 and 87,815,832.36 is: 131,728,726.74
Step by Step Solution
- Step 1: Write the proportion equation
274,545,487.74 : 411,833,795.34 = 87,815,832.36 : x - Step 2: Convert to fraction form
274,545,487.74/411,833,795.34 = 87,815,832.36/x - Step 3: Cross multiply
274,545,487.74x = 411,833,795.34 × 87,815,832.36 - Step 4: Simplify right side
274,545,487.74x = 36,165,527,531,759,984 - Step 5: Solve for x
x = 36,165,527,531,759,984/274,545,487.74 - Step 6: Final answer
x = 131,728,726.74
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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.