Finding the Fourth Proportional to 18,264,612.12, 27,400,844.52 and 5,310,987.87
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Solution
The fourth proportional to 18,264,612.12, 27,400,844.52 and 5,310,987.87 is: 7,967,623.51
Step by Step Solution
- Step 1: Write the proportion equation
18,264,612.12 : 27,400,844.52 = 5,310,987.87 : x - Step 2: Convert to fraction form
18,264,612.12/27,400,844.52 = 5,310,987.87/x - Step 3: Cross multiply
18,264,612.12x = 27,400,844.52 × 5,310,987.87 - Step 4: Simplify right side
18,264,612.12x = 145,525,552,873,475.97 - Step 5: Solve for x
x = 145,525,552,873,475.97/18,264,612.12 - Step 6: Final answer
x = 7,967,623.51
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.