Finding the Fourth Proportional to 20,097,857.34, 27,735,056.81 and 11,276,090.81
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Solution
The fourth proportional to 20,097,857.34, 27,735,056.81 and 11,276,090.81 is: 15,561,012.99
Step by Step Solution
- Step 1: Write the proportion equation
20,097,857.34 : 27,735,056.81 = 11,276,090.81 : x - Step 2: Convert to fraction form
20,097,857.34/27,735,056.81 = 11,276,090.81/x - Step 3: Cross multiply
20,097,857.34x = 27,735,056.81 × 11,276,090.81 - Step 4: Simplify right side
20,097,857.34x = 312,743,019,161,305 - Step 5: Solve for x
x = 312,743,019,161,305/20,097,857.34 - Step 6: Final answer
x = 15,561,012.99
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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.