Finding the Fourth Proportional to 18,702,331.60, 28,053,497.40 and 16,182,907.60
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Solution
The fourth proportional to 18,702,331.60, 28,053,497.40 and 16,182,907.60 is: 24,274,361.40
Step by Step Solution
- Step 1: Write the proportion equation
18,702,331.60 : 28,053,497.40 = 16,182,907.60 : x - Step 2: Convert to fraction form
18,702,331.60/28,053,497.40 = 16,182,907.60/x - Step 3: Cross multiply
18,702,331.60x = 28,053,497.40 × 16,182,907.60 - Step 4: Simplify right side
18,702,331.60x = 453,987,156,281,040.19 - Step 5: Solve for x
x = 453,987,156,281,040.19/18,702,331.60 - Step 6: Final answer
x = 24,274,361.40
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1.5x scale
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.