Finding the Fourth Proportional to 20,829,215.84, 28,743,996.84 and 11,662,186.64
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Solution
The fourth proportional to 20,829,215.84, 28,743,996.84 and 11,662,186.64 is: 16,093,637.83
Step by Step Solution
- Step 1: Write the proportion equation
20,829,215.84 : 28,743,996.84 = 11,662,186.64 : x - Step 2: Convert to fraction form
20,829,215.84/28,743,996.84 = 11,662,186.64/x - Step 3: Cross multiply
20,829,215.84x = 28,743,996.84 × 11,662,186.64 - Step 4: Simplify right side
20,829,215.84x = 335,217,855,927,650.25 - Step 5: Solve for x
x = 335,217,855,927,650.25/20,829,215.84 - Step 6: Final answer
x = 16,093,637.83
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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.