Finding the Fourth Proportional to 3,860,791.18, 5,327,889.75 and 2,118,472.01
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Solution
The fourth proportional to 3,860,791.18, 5,327,889.75 and 2,118,472.01 is: 2,923,490.23
Step by Step Solution
- Step 1: Write the proportion equation
3,860,791.18 : 5,327,889.75 = 2,118,472.01 : x - Step 2: Convert to fraction form
3,860,791.18/5,327,889.75 = 2,118,472.01/x - Step 3: Cross multiply
3,860,791.18x = 5,327,889.75 × 2,118,472.01 - Step 4: Simplify right side
3,860,791.18x = 11,286,985,281,101.45 - Step 5: Solve for x
x = 11,286,985,281,101.45/3,860,791.18 - Step 6: Final answer
x = 2,923,490.23
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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.