Finding the Fourth Proportional to 20,184,010.85, 27,890,370.16 and 14,372,703.52
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Solution
The fourth proportional to 20,184,010.85, 27,890,370.16 and 14,372,703.52 is: 19,860,275.75
Step by Step Solution
- Step 1: Write the proportion equation
20,184,010.85 : 27,890,370.16 = 14,372,703.52 : x - Step 2: Convert to fraction form
20,184,010.85/27,890,370.16 = 14,372,703.52/x - Step 3: Cross multiply
20,184,010.85x = 27,890,370.16 × 14,372,703.52 - Step 4: Simplify right side
20,184,010.85x = 400,860,021,267,077.25 - Step 5: Solve for x
x = 400,860,021,267,077.25/20,184,010.85 - Step 6: Final answer
x = 19,860,275.75
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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.