Finding the Fourth Proportional to 21,296,516.04, 29,395,212.54 and 12,597,712.62
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Solution
The fourth proportional to 21,296,516.04, 29,395,212.54 and 12,597,712.62 is: 17,388,404.72
Step by Step Solution
- Step 1: Write the proportion equation
21,296,516.04 : 29,395,212.54 = 12,597,712.62 : x - Step 2: Convert to fraction form
21,296,516.04/29,395,212.54 = 12,597,712.62/x - Step 3: Cross multiply
21,296,516.04x = 29,395,212.54 × 12,597,712.62 - Step 4: Simplify right side
21,296,516.04x = 370,312,439,982,740.25 - Step 5: Solve for x
x = 370,312,439,982,740.25/21,296,516.04 - Step 6: Final answer
x = 17,388,404.72
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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.