Finding the Fourth Proportional to 13,789,338.68, 19,028,673.29 and 7,904,754.23
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Solution
The fourth proportional to 13,789,338.68, 19,028,673.29 and 7,904,754.23 is: 10,908,208.80
Step by Step Solution
- Step 1: Write the proportion equation
13,789,338.68 : 19,028,673.29 = 7,904,754.23 : x - Step 2: Convert to fraction form
13,789,338.68/19,028,673.29 = 7,904,754.23/x - Step 3: Cross multiply
13,789,338.68x = 19,028,673.29 × 7,904,754.23 - Step 4: Simplify right side
13,789,338.68x = 150,416,985,605,034.03 - Step 5: Solve for x
x = 150,416,985,605,034.03/13,789,338.68 - Step 6: Final answer
x = 10,908,208.80
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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.