Finding the Fourth Proportional to 5,135,118.54, 7,086,550.59 and 2,811,973.74
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Solution
The fourth proportional to 5,135,118.54, 7,086,550.59 and 2,811,973.74 is: 3,880,571.40
Step by Step Solution
- Step 1: Write the proportion equation
5,135,118.54 : 7,086,550.59 = 2,811,973.74 : x - Step 2: Convert to fraction form
5,135,118.54/7,086,550.59 = 2,811,973.74/x - Step 3: Cross multiply
5,135,118.54x = 7,086,550.59 × 2,811,973.74 - Step 4: Simplify right side
5,135,118.54x = 19,927,194,166,261.51 - Step 5: Solve for x
x = 19,927,194,166,261.51/5,135,118.54 - Step 6: Final answer
x = 3,880,571.40
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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.