Finding the Fourth Proportional to 5,461,261.97, 7,539,374.74 and 3,989,517.93
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Solution
The fourth proportional to 5,461,261.97, 7,539,374.74 and 3,989,517.93 is: 5,507,604.45
Step by Step Solution
- Step 1: Write the proportion equation
5,461,261.97 : 7,539,374.74 = 3,989,517.93 : x - Step 2: Convert to fraction form
5,461,261.97/7,539,374.74 = 3,989,517.93/x - Step 3: Cross multiply
5,461,261.97x = 7,539,374.74 × 3,989,517.93 - Step 4: Simplify right side
5,461,261.97x = 30,078,470,706,219.09 - Step 5: Solve for x
x = 30,078,470,706,219.09/5,461,261.97 - Step 6: Final answer
x = 5,507,604.45
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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.