Finding the Fourth Proportional to 12,960,537.84, 17,872,145.64 and 11,131,053.84
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Solution
The fourth proportional to 12,960,537.84, 17,872,145.64 and 11,131,053.84 is: 15,349,348.75
Step by Step Solution
- Step 1: Write the proportion equation
12,960,537.84 : 17,872,145.64 = 11,131,053.84 : x - Step 2: Convert to fraction form
12,960,537.84/17,872,145.64 = 11,131,053.84/x - Step 3: Cross multiply
12,960,537.84x = 17,872,145.64 × 11,131,053.84 - Step 4: Simplify right side
12,960,537.84x = 198,935,815,355,161.25 - Step 5: Solve for x
x = 198,935,815,355,161.25/12,960,537.84 - Step 6: Final answer
x = 15,349,348.75
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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.