Finding the Fourth Proportional to 27,755,751.74, 38,306,945.93 and 15,992,768.12
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Solution
The fourth proportional to 27,755,751.74, 38,306,945.93 and 15,992,768.12 is: 22,072,329.70
Step by Step Solution
- Step 1: Write the proportion equation
27,755,751.74 : 38,306,945.93 = 15,992,768.12 : x - Step 2: Convert to fraction form
27,755,751.74/38,306,945.93 = 15,992,768.12/x - Step 3: Cross multiply
27,755,751.74x = 38,306,945.93 × 15,992,768.12 - Step 4: Simplify right side
27,755,751.74x = 612,634,103,372,369.12 - Step 5: Solve for x
x = 612,634,103,372,369.12/27,755,751.74 - Step 6: Final answer
x = 22,072,329.70
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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.