Finding the Fourth Proportional to 14,272,198.36, 19,695,780.92 and 7,745,884.18
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Solution
The fourth proportional to 14,272,198.36, 19,695,780.92 and 7,745,884.18 is: 10,689,400.05
Step by Step Solution
- Step 1: Write the proportion equation
14,272,198.36 : 19,695,780.92 = 7,745,884.18 : x - Step 2: Convert to fraction form
14,272,198.36/19,695,780.92 = 7,745,884.18/x - Step 3: Cross multiply
14,272,198.36x = 19,695,780.92 × 7,745,884.18 - Step 4: Simplify right side
14,272,198.36x = 152,561,237,840,973.84 - Step 5: Solve for x
x = 152,561,237,840,973.84/14,272,198.36 - Step 6: Final answer
x = 10,689,400.05
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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.