Finding the Fourth Proportional to 20,273,420.44, 27,970,308.96 and 15,373,538.20
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Solution
The fourth proportional to 20,273,420.44, 27,970,308.96 and 15,373,538.20 is: 21,210,166.02
Step by Step Solution
- Step 1: Write the proportion equation
20,273,420.44 : 27,970,308.96 = 15,373,538.20 : x - Step 2: Convert to fraction form
20,273,420.44/27,970,308.96 = 15,373,538.20/x - Step 3: Cross multiply
20,273,420.44x = 27,970,308.96 × 15,373,538.20 - Step 4: Simplify right side
20,273,420.44x = 430,002,613,262,362.25 - Step 5: Solve for x
x = 430,002,613,262,362.25/20,273,420.44 - Step 6: Final answer
x = 21,210,166.02
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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.