Finding the Fourth Proportional to 3,888,366.64, 5,365,820.52 and 2,122,197.36
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Solution
The fourth proportional to 3,888,366.64, 5,365,820.52 and 2,122,197.36 is: 2,928,563.89
Step by Step Solution
- Step 1: Write the proportion equation
3,888,366.64 : 5,365,820.52 = 2,122,197.36 : x - Step 2: Convert to fraction form
3,888,366.64/5,365,820.52 = 2,122,197.36/x - Step 3: Cross multiply
3,888,366.64x = 5,365,820.52 × 2,122,197.36 - Step 4: Simplify right side
3,888,366.64x = 11,387,330,141,777.83 - Step 5: Solve for x
x = 11,387,330,141,777.83/3,888,366.64 - Step 6: Final answer
x = 2,928,563.89
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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.