Finding the Fourth Proportional to 43,468,845.60, 65,203,268.40 and 28,163,344.80
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Solution
The fourth proportional to 43,468,845.60, 65,203,268.40 and 28,163,344.80 is: 42,245,017.20
Step by Step Solution
- Step 1: Write the proportion equation
43,468,845.60 : 65,203,268.40 = 28,163,344.80 : x - Step 2: Convert to fraction form
43,468,845.60/65,203,268.40 = 28,163,344.80/x - Step 3: Cross multiply
43,468,845.60x = 65,203,268.40 × 28,163,344.80 - Step 4: Simplify right side
43,468,845.60x = 1,836,342,130,036,144.25 - Step 5: Solve for x
x = 1,836,342,130,036,144.25/43,468,845.60 - Step 6: Final answer
x = 42,245,017.20
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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.