Finding the Fourth Proportional to 18,438,357.60, 27,657,536.40 and 16,611,775.20
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Solution
The fourth proportional to 18,438,357.60, 27,657,536.40 and 16,611,775.20 is: 24,917,662.80
Step by Step Solution
- Step 1: Write the proportion equation
18,438,357.60 : 27,657,536.40 = 16,611,775.20 : x - Step 2: Convert to fraction form
18,438,357.60/27,657,536.40 = 16,611,775.20/x - Step 3: Cross multiply
18,438,357.60x = 27,657,536.40 × 16,611,775.20 - Step 4: Simplify right side
18,438,357.60x = 459,440,777,262,617.25 - Step 5: Solve for x
x = 459,440,777,262,617.25/18,438,357.60 - Step 6: Final answer
x = 24,917,662.80
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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.