Finding the Fourth Proportional to 27,930,350.78, 38,543,279.90 and 16,170,115.02
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Solution
The fourth proportional to 27,930,350.78, 38,543,279.90 and 16,170,115.02 is: 22,314,408.94
Step by Step Solution
- Step 1: Write the proportion equation
27,930,350.78 : 38,543,279.90 = 16,170,115.02 : x - Step 2: Convert to fraction form
27,930,350.78/38,543,279.90 = 16,170,115.02/x - Step 3: Cross multiply
27,930,350.78x = 38,543,279.90 × 16,170,115.02 - Step 4: Simplify right side
27,930,350.78x = 623,249,269,231,054 - Step 5: Solve for x
x = 623,249,269,231,054/27,930,350.78 - Step 6: Final answer
x = 22,314,408.94
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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.