Finding the Fourth Proportional to 3,719,120.13, 5,131,991.52 and 2,087,707.23
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Solution
The fourth proportional to 3,719,120.13, 5,131,991.52 and 2,087,707.23 is: 2,880,814.66
Step by Step Solution
- Step 1: Write the proportion equation
3,719,120.13 : 5,131,991.52 = 2,087,707.23 : x - Step 2: Convert to fraction form
3,719,120.13/5,131,991.52 = 2,087,707.23/x - Step 3: Cross multiply
3,719,120.13x = 5,131,991.52 × 2,087,707.23 - Step 4: Simplify right side
3,719,120.13x = 10,714,095,800,602.69 - Step 5: Solve for x
x = 10,714,095,800,602.69/3,719,120.13 - Step 6: Final answer
x = 2,880,814.66
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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.