Finding the Fourth Proportional to 318,974,586.56, 440,184,861.60 and 172,296,872
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Solution
The fourth proportional to 318,974,586.56, 440,184,861.60 and 172,296,872 is: 237,769,646.71
Step by Step Solution
- Step 1: Write the proportion equation
318,974,586.56 : 440,184,861.60 = 172,296,872 : x - Step 2: Convert to fraction form
318,974,586.56/440,184,861.60 = 172,296,872/x - Step 3: Cross multiply
318,974,586.56x = 440,184,861.60 × 172,296,872 - Step 4: Simplify right side
318,974,586.56x = 75,842,474,755,432,912 - Step 5: Solve for x
x = 75,842,474,755,432,912/318,974,586.56 - Step 6: Final answer
x = 237,769,646.71
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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.