Finding the Fourth Proportional to 19,767,927.30, 27,279,529.36 and 11,066,171.42
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Solution
The fourth proportional to 19,767,927.30, 27,279,529.36 and 11,066,171.42 is: 15,271,198.82
Step by Step Solution
- Step 1: Write the proportion equation
19,767,927.30 : 27,279,529.36 = 11,066,171.42 : x - Step 2: Convert to fraction form
19,767,927.30/27,279,529.36 = 11,066,171.42/x - Step 3: Cross multiply
19,767,927.30x = 27,279,529.36 × 11,066,171.42 - Step 4: Simplify right side
19,767,927.30x = 301,879,947,990,619.81 - Step 5: Solve for x
x = 301,879,947,990,619.81/19,767,927.30 - Step 6: Final answer
x = 15,271,198.82
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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.