Finding the Fourth Proportional to 11,861,404,983.75, 16,368,988,881.63 and 6,508,918,515.49
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Solution
The fourth proportional to 11,861,404,983.75, 16,368,988,881.63 and 6,508,918,515.49 is: 8,982,444,740.53
Step by Step Solution
- Step 1: Write the proportion equation
11,861,404,983.75 : 16,368,988,881.63 = 6,508,918,515.49 : x - Step 2: Convert to fraction form
11,861,404,983.75/16,368,988,881.63 = 6,508,918,515.49/x - Step 3: Cross multiply
11,861,404,983.75x = 16,368,988,881.63 × 6,508,918,515.49 - Step 4: Simplify right side
11,861,404,983.75x = 106,544,414,811,491,450,880 - Step 5: Solve for x
x = 106,544,414,811,491,450,880/11,861,404,983.75 - Step 6: Final answer
x = 8,982,444,740.53
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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.