Finding the Fourth Proportional to 20,190,316.21, 27,862,494.23 and 11,022,958.96
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Solution
The fourth proportional to 20,190,316.21, 27,862,494.23 and 11,022,958.96 is: 15,211,605.76
Step by Step Solution
- Step 1: Write the proportion equation
20,190,316.21 : 27,862,494.23 = 11,022,958.96 : x - Step 2: Convert to fraction form
20,190,316.21/27,862,494.23 = 11,022,958.96/x - Step 3: Cross multiply
20,190,316.21x = 27,862,494.23 × 11,022,958.96 - Step 4: Simplify right side
20,190,316.21x = 307,127,130,281,214.31 - Step 5: Solve for x
x = 307,127,130,281,214.31/20,190,316.21 - Step 6: Final answer
x = 15,211,605.76
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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.