Finding the Fourth Proportional to 18,438,359.60, 27,657,539.40 and 16,611,777.20
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Solution
The fourth proportional to 18,438,359.60, 27,657,539.40 and 16,611,777.20 is: 24,917,665.80
Step by Step Solution
- Step 1: Write the proportion equation
18,438,359.60 : 27,657,539.40 = 16,611,777.20 : x - Step 2: Convert to fraction form
18,438,359.60/27,657,539.40 = 16,611,777.20/x - Step 3: Cross multiply
18,438,359.60x = 27,657,539.40 × 16,611,777.20 - Step 4: Simplify right side
18,438,359.60x = 459,440,882,413,021.62 - Step 5: Solve for x
x = 459,440,882,413,021.62/18,438,359.60 - Step 6: Final answer
x = 24,917,665.80
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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.