Finding the Fourth Proportional to 5,284,975.40, 7,293,141.99 and 3,109,659.44
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Solution
The fourth proportional to 5,284,975.40, 7,293,141.99 and 3,109,659.44 is: 4,291,257.03
Step by Step Solution
- Step 1: Write the proportion equation
5,284,975.40 : 7,293,141.99 = 3,109,659.44 : x - Step 2: Convert to fraction form
5,284,975.40/7,293,141.99 = 3,109,659.44/x - Step 3: Cross multiply
5,284,975.40x = 7,293,141.99 × 3,109,659.44 - Step 4: Simplify right side
5,284,975.40x = 22,679,187,799,998.18 - Step 5: Solve for x
x = 22,679,187,799,998.18/5,284,975.40 - Step 6: Final answer
x = 4,291,257.03
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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.