Finding the Fourth Proportional to 274,897,129.40, 412,345,694.10 and 121,464,207.80
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Solution
The fourth proportional to 274,897,129.40, 412,345,694.10 and 121,464,207.80 is: 182,196,311.70
Step by Step Solution
- Step 1: Write the proportion equation
274,897,129.40 : 412,345,694.10 = 121,464,207.80 : x - Step 2: Convert to fraction form
274,897,129.40/412,345,694.10 = 121,464,207.80/x - Step 3: Cross multiply
274,897,129.40x = 412,345,694.10 × 121,464,207.80 - Step 4: Simplify right side
274,897,129.40x = 50,085,243,073,597,632 - Step 5: Solve for x
x = 50,085,243,073,597,632/274,897,129.40 - Step 6: Final answer
x = 182,196,311.70
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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.