Finding the Fourth Proportional to 19,369,751.31, 26,728,278.84 and 11,926,231.20
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Solution
The fourth proportional to 19,369,751.31, 26,728,278.84 and 11,926,231.20 is: 16,456,981.19
Step by Step Solution
- Step 1: Write the proportion equation
19,369,751.31 : 26,728,278.84 = 11,926,231.20 : x - Step 2: Convert to fraction form
19,369,751.31/26,728,278.84 = 11,926,231.20/x - Step 3: Cross multiply
19,369,751.31x = 26,728,278.84 × 11,926,231.20 - Step 4: Simplify right side
19,369,751.31x = 318,767,633,023,907.81 - Step 5: Solve for x
x = 318,767,633,023,907.81/19,369,751.31 - Step 6: Final answer
x = 16,456,981.19
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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.