Finding the Fourth Proportional to 5,192,431.81, 7,165,987.36 and 2,869,777.84
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Solution
The fourth proportional to 5,192,431.81, 7,165,987.36 and 2,869,777.84 is: 3,960,531.88
Step by Step Solution
- Step 1: Write the proportion equation
5,192,431.81 : 7,165,987.36 = 2,869,777.84 : x - Step 2: Convert to fraction form
5,192,431.81/7,165,987.36 = 2,869,777.84/x - Step 3: Cross multiply
5,192,431.81x = 7,165,987.36 × 2,869,777.84 - Step 4: Simplify right side
5,192,431.81x = 20,564,791,713,120.36 - Step 5: Solve for x
x = 20,564,791,713,120.36/5,192,431.81 - Step 6: Final answer
x = 3,960,531.88
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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.