Finding the Fourth Proportional to 31,703,489.50, 43,750,821.86 and 19,313,582.26
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Solution
The fourth proportional to 31,703,489.50, 43,750,821.86 and 19,313,582.26 is: 26,652,747.39
Step by Step Solution
- Step 1: Write the proportion equation
31,703,489.50 : 43,750,821.86 = 19,313,582.26 : x - Step 2: Convert to fraction form
31,703,489.50/43,750,821.86 = 19,313,582.26/x - Step 3: Cross multiply
31,703,489.50x = 43,750,821.86 × 19,313,582.26 - Step 4: Simplify right side
31,703,489.50x = 844,985,096,935,716.25 - Step 5: Solve for x
x = 844,985,096,935,716.25/31,703,489.50 - Step 6: Final answer
x = 26,652,747.39
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.