Finding the Fourth Proportional to 49,581,631.80, 74,372,447.70 and 13,189,951.80
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Solution
The fourth proportional to 49,581,631.80, 74,372,447.70 and 13,189,951.80 is: 19,784,927.70
Step by Step Solution
- Step 1: Write the proportion equation
49,581,631.80 : 74,372,447.70 = 13,189,951.80 : x - Step 2: Convert to fraction form
49,581,631.80/74,372,447.70 = 13,189,951.80/x - Step 3: Cross multiply
49,581,631.80x = 74,372,447.70 × 13,189,951.80 - Step 4: Simplify right side
49,581,631.80x = 980,969,000,411,021 - Step 5: Solve for x
x = 980,969,000,411,021/49,581,631.80 - Step 6: Final answer
x = 19,784,927.70
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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.