Finding the Fourth Proportional to 20,369,835.24, 28,109,812.26 and 11,202,478.44
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Solution
The fourth proportional to 20,369,835.24, 28,109,812.26 and 11,202,478.44 is: 15,459,112.07
Step by Step Solution
- Step 1: Write the proportion equation
20,369,835.24 : 28,109,812.26 = 11,202,478.44 : x - Step 2: Convert to fraction form
20,369,835.24/28,109,812.26 = 11,202,478.44/x - Step 3: Cross multiply
20,369,835.24x = 28,109,812.26 × 11,202,478.44 - Step 4: Simplify right side
20,369,835.24x = 314,899,565,795,097.69 - Step 5: Solve for x
x = 314,899,565,795,097.69/20,369,835.24 - Step 6: Final answer
x = 15,459,112.07
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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.