Finding the Fourth Proportional to 54,161,571.91, 74,742,969.23 and 30,957,197.09
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Solution
The fourth proportional to 54,161,571.91, 74,742,969.23 and 30,957,197.09 is: 42,720,931.99
Step by Step Solution
- Step 1: Write the proportion equation
54,161,571.91 : 74,742,969.23 = 30,957,197.09 : x - Step 2: Convert to fraction form
54,161,571.91/74,742,969.23 = 30,957,197.09/x - Step 3: Cross multiply
54,161,571.91x = 74,742,969.23 × 30,957,197.09 - Step 4: Simplify right side
54,161,571.91x = 2,313,832,829,809,166 - Step 5: Solve for x
x = 2,313,832,829,809,166/54,161,571.91 - Step 6: Final answer
x = 42,720,931.99
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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.