Finding the Fourth Proportional to 11,833,768.68, 16,327,781.70 and 8,161,511.40
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Solution
The fourth proportional to 11,833,768.68, 16,327,781.70 and 8,161,511.40 is: 11,260,941.47
Step by Step Solution
- Step 1: Write the proportion equation
11,833,768.68 : 16,327,781.70 = 8,161,511.40 : x - Step 2: Convert to fraction form
11,833,768.68/16,327,781.70 = 8,161,511.40/x - Step 3: Cross multiply
11,833,768.68x = 16,327,781.70 × 8,161,511.40 - Step 4: Simplify right side
11,833,768.68x = 133,259,376,481,261.38 - Step 5: Solve for x
x = 133,259,376,481,261.38/11,833,768.68 - Step 6: Final answer
x = 11,260,941.47
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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.