Finding the Fourth Proportional to 18,403,977.20, 27,605,965.80 and 5,450,594.90
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Solution
The fourth proportional to 18,403,977.20, 27,605,965.80 and 5,450,594.90 is: 8,175,892.35
Step by Step Solution
- Step 1: Write the proportion equation
18,403,977.20 : 27,605,965.80 = 5,450,594.90 : x - Step 2: Convert to fraction form
18,403,977.20/27,605,965.80 = 5,450,594.90/x - Step 3: Cross multiply
18,403,977.20x = 27,605,965.80 × 5,450,594.90 - Step 4: Simplify right side
18,403,977.20x = 150,468,936,399,054.44 - Step 5: Solve for x
x = 150,468,936,399,054.44/18,403,977.20 - Step 6: Final answer
x = 8,175,892.35
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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.