Finding the Fourth Proportional to 5,177,656.95, 7,145,174.42 and 2,885,768.43
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Solution
The fourth proportional to 5,177,656.95, 7,145,174.42 and 2,885,768.43 is: 3,982,364.80
Step by Step Solution
- Step 1: Write the proportion equation
5,177,656.95 : 7,145,174.42 = 2,885,768.43 : x - Step 2: Convert to fraction form
5,177,656.95/7,145,174.42 = 2,885,768.43/x - Step 3: Cross multiply
5,177,656.95x = 7,145,174.42 × 2,885,768.43 - Step 4: Simplify right side
5,177,656.95x = 20,619,318,768,079.56 - Step 5: Solve for x
x = 20,619,318,768,079.56/5,177,656.95 - Step 6: Final answer
x = 3,982,364.80
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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.