Finding the Fourth Proportional to 20,123,459.24, 27,772,883.14 and 11,424,448.04
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Solution
The fourth proportional to 20,123,459.24, 27,772,883.14 and 11,424,448.04 is: 15,767,162.92
Step by Step Solution
- Step 1: Write the proportion equation
20,123,459.24 : 27,772,883.14 = 11,424,448.04 : x - Step 2: Convert to fraction form
20,123,459.24/27,772,883.14 = 11,424,448.04/x - Step 3: Cross multiply
20,123,459.24x = 27,772,883.14 × 11,424,448.04 - Step 4: Simplify right side
20,123,459.24x = 317,289,860,353,922 - Step 5: Solve for x
x = 317,289,860,353,922/20,123,459.24 - Step 6: Final answer
x = 15,767,162.92
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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.