Finding the Fourth Proportional to 138,463,851.87, 207,706,775.67 and 46,348,076.18
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Solution
The fourth proportional to 138,463,851.87, 207,706,775.67 and 46,348,076.18 is: 69,525,795.58
Step by Step Solution
- Step 1: Write the proportion equation
138,463,851.87 : 207,706,775.67 = 46,348,076.18 : x - Step 2: Convert to fraction form
138,463,851.87/207,706,775.67 = 46,348,076.18/x - Step 3: Cross multiply
138,463,851.87x = 207,706,775.67 × 46,348,076.18 - Step 4: Simplify right side
138,463,851.87x = 9,626,809,460,816,796 - Step 5: Solve for x
x = 9,626,809,460,816,796/138,463,851.87 - Step 6: Final answer
x = 69,525,795.58
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.