Finding the Fourth Proportional to 18,122,646.30, 27,183,969.45 and 7,345,110.30
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Solution
The fourth proportional to 18,122,646.30, 27,183,969.45 and 7,345,110.30 is: 11,017,665.45
Step by Step Solution
- Step 1: Write the proportion equation
18,122,646.30 : 27,183,969.45 = 7,345,110.30 : x - Step 2: Convert to fraction form
18,122,646.30/27,183,969.45 = 7,345,110.30/x - Step 3: Cross multiply
18,122,646.30x = 27,183,969.45 × 7,345,110.30 - Step 4: Simplify right side
18,122,646.30x = 199,669,254,002,080.31 - Step 5: Solve for x
x = 199,669,254,002,080.31/18,122,646.30 - Step 6: Final answer
x = 11,017,665.45
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Similar ratio
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1.5x scale
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.