Finding the Fourth Proportional to 7,791,561.99, 11,687,343.09 and 2,111,786.31
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Solution
The fourth proportional to 7,791,561.99, 11,687,343.09 and 2,111,786.31 is: 3,167,679.49
Step by Step Solution
- Step 1: Write the proportion equation
7,791,561.99 : 11,687,343.09 = 2,111,786.31 : x - Step 2: Convert to fraction form
7,791,561.99/11,687,343.09 = 2,111,786.31/x - Step 3: Cross multiply
7,791,561.99x = 11,687,343.09 × 2,111,786.31 - Step 4: Simplify right side
7,791,561.99x = 24,681,171,079,298.38 - Step 5: Solve for x
x = 24,681,171,079,298.38/7,791,561.99 - Step 6: Final answer
x = 3,167,679.49
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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.