Finding the Fourth Proportional to 84,230,817.16, 126,344,543.45 and 38,164,100.66
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Solution
The fourth proportional to 84,230,817.16, 126,344,543.45 and 38,164,100.66 is: 57,245,388.77
Step by Step Solution
- Step 1: Write the proportion equation
84,230,817.16 : 126,344,543.45 = 38,164,100.66 : x - Step 2: Convert to fraction form
84,230,817.16/126,344,543.45 = 38,164,100.66/x - Step 3: Cross multiply
84,230,817.16x = 126,344,543.45 × 38,164,100.66 - Step 4: Simplify right side
84,230,817.16x = 4,821,825,874,395,923 - Step 5: Solve for x
x = 4,821,825,874,395,923/84,230,817.16 - Step 6: Final answer
x = 57,245,388.77
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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.