Finding the Fourth Proportional to 4,055,765.81, 5,590,993.88 and 3,087,209.12
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Solution
The fourth proportional to 4,055,765.81, 5,590,993.88 and 3,087,209.12 is: 4,255,809.66
Step by Step Solution
- Step 1: Write the proportion equation
4,055,765.81 : 5,590,993.88 = 3,087,209.12 : x - Step 2: Convert to fraction form
4,055,765.81/5,590,993.88 = 3,087,209.12/x - Step 3: Cross multiply
4,055,765.81x = 5,590,993.88 × 3,087,209.12 - Step 4: Simplify right side
4,055,765.81x = 17,260,567,275,963.24 - Step 5: Solve for x
x = 17,260,567,275,963.24/4,055,765.81 - Step 6: Final answer
x = 4,255,809.66
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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.