Finding the Fourth Proportional to 13,013,252.16, 17,958,288.24 and 7,212,906.96
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Solution
The fourth proportional to 13,013,252.16, 17,958,288.24 and 7,212,906.96 is: 9,953,811.75
Step by Step Solution
- Step 1: Write the proportion equation
13,013,252.16 : 17,958,288.24 = 7,212,906.96 : x - Step 2: Convert to fraction form
13,013,252.16/17,958,288.24 = 7,212,906.96/x - Step 3: Cross multiply
13,013,252.16x = 17,958,288.24 × 7,212,906.96 - Step 4: Simplify right side
13,013,252.16x = 129,531,462,235,982.14 - Step 5: Solve for x
x = 129,531,462,235,982.14/13,013,252.16 - Step 6: Final answer
x = 9,953,811.75
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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.