Finding the Fourth Proportional to 3,987,069.96, 5,502,156.60 and 2,176,233.96
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Solution
The fourth proportional to 3,987,069.96, 5,502,156.60 and 2,176,233.96 is: 3,003,202.89
Step by Step Solution
- Step 1: Write the proportion equation
3,987,069.96 : 5,502,156.60 = 2,176,233.96 : x - Step 2: Convert to fraction form
3,987,069.96/5,502,156.60 = 2,176,233.96/x - Step 3: Cross multiply
3,987,069.96x = 5,502,156.60 × 2,176,233.96 - Step 4: Simplify right side
3,987,069.96x = 11,973,980,046,158.13 - Step 5: Solve for x
x = 11,973,980,046,158.13/3,987,069.96 - Step 6: Final answer
x = 3,003,202.89
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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.