Finding the Fourth Proportional to 7,811,945.78, 11,713,637.51 and 2,419,099.02
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Solution
The fourth proportional to 7,811,945.78, 11,713,637.51 and 2,419,099.02 is: 3,627,322.80
Step by Step Solution
- Step 1: Write the proportion equation
7,811,945.78 : 11,713,637.51 = 2,419,099.02 : x - Step 2: Convert to fraction form
7,811,945.78/11,713,637.51 = 2,419,099.02/x - Step 3: Cross multiply
7,811,945.78x = 11,713,637.51 × 2,419,099.02 - Step 4: Simplify right side
7,811,945.78x = 28,336,449,018,052.36 - Step 5: Solve for x
x = 28,336,449,018,052.36/7,811,945.78 - Step 6: Final answer
x = 3,627,322.80
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.