Finding the Fourth Proportional to 621,131,582.70, 930,906,117.45 and 330,138,110.70
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Solution
The fourth proportional to 621,131,582.70, 930,906,117.45 and 330,138,110.70 is: 494,786,604.66
Step by Step Solution
- Step 1: Write the proportion equation
621,131,582.70 : 930,906,117.45 = 330,138,110.70 : x - Step 2: Convert to fraction form
621,131,582.70/930,906,117.45 = 330,138,110.70/x - Step 3: Cross multiply
621,131,582.70x = 930,906,117.45 × 330,138,110.70 - Step 4: Simplify right side
621,131,582.70x = 307,327,586,854,015,296 - Step 5: Solve for x
x = 307,327,586,854,015,296/621,131,582.70 - Step 6: Final answer
x = 494,786,604.66
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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.