Finding the Fourth Proportional to 20,072,430.99, 27,699,415.56 and 11,812,979.25
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Solution
The fourth proportional to 20,072,430.99, 27,699,415.56 and 11,812,979.25 is: 16,301,594.03
Step by Step Solution
- Step 1: Write the proportion equation
20,072,430.99 : 27,699,415.56 = 11,812,979.25 : x - Step 2: Convert to fraction form
20,072,430.99/27,699,415.56 = 11,812,979.25/x - Step 3: Cross multiply
20,072,430.99x = 27,699,415.56 × 11,812,979.25 - Step 4: Simplify right side
20,072,430.99x = 327,212,621,247,407.12 - Step 5: Solve for x
x = 327,212,621,247,407.12/20,072,430.99 - Step 6: Final answer
x = 16,301,594.03
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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.