Finding the Fourth Proportional to 18,683,102.40, 28,024,653.60 and 11,471,251.20
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Solution
The fourth proportional to 18,683,102.40, 28,024,653.60 and 11,471,251.20 is: 17,206,876.80
Step by Step Solution
- Step 1: Write the proportion equation
18,683,102.40 : 28,024,653.60 = 11,471,251.20 : x - Step 2: Convert to fraction form
18,683,102.40/28,024,653.60 = 11,471,251.20/x - Step 3: Cross multiply
18,683,102.40x = 28,024,653.60 × 11,471,251.20 - Step 4: Simplify right side
18,683,102.40x = 321,477,841,238,584.31 - Step 5: Solve for x
x = 321,477,841,238,584.31/18,683,102.40 - Step 6: Final answer
x = 17,206,876.80
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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.