Finding the Fourth Proportional to 21,387,992.40, 29,507,674.68 and 14,049,776.88
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Solution
The fourth proportional to 21,387,992.40, 29,507,674.68 and 14,049,776.88 is: 19,383,597.94
Step by Step Solution
- Step 1: Write the proportion equation
21,387,992.40 : 29,507,674.68 = 14,049,776.88 : x - Step 2: Convert to fraction form
21,387,992.40/29,507,674.68 = 14,049,776.88/x - Step 3: Cross multiply
21,387,992.40x = 29,507,674.68 × 14,049,776.88 - Step 4: Simplify right side
21,387,992.40x = 414,576,245,501,625.44 - Step 5: Solve for x
x = 414,576,245,501,625.44/21,387,992.40 - Step 6: Final answer
x = 19,383,597.94
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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.