Finding the Fourth Proportional to 38,489,923.98, 57,743,503.29 and 12,930,236.28
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Solution
The fourth proportional to 38,489,923.98, 57,743,503.29 and 12,930,236.28 is: 19,398,249.31
Step by Step Solution
- Step 1: Write the proportion equation
38,489,923.98 : 57,743,503.29 = 12,930,236.28 : x - Step 2: Convert to fraction form
38,489,923.98/57,743,503.29 = 12,930,236.28/x - Step 3: Cross multiply
38,489,923.98x = 57,743,503.29 × 12,930,236.28 - Step 4: Simplify right side
38,489,923.98x = 746,637,141,174,657.25 - Step 5: Solve for x
x = 746,637,141,174,657.25/38,489,923.98 - Step 6: Final answer
x = 19,398,249.31
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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.