Finding the Fourth Proportional to 42,534,497.20, 63,801,745.80 and 13,783,539.10
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Solution
The fourth proportional to 42,534,497.20, 63,801,745.80 and 13,783,539.10 is: 20,675,308.65
Step by Step Solution
- Step 1: Write the proportion equation
42,534,497.20 : 63,801,745.80 = 13,783,539.10 : x - Step 2: Convert to fraction form
42,534,497.20/63,801,745.80 = 13,783,539.10/x - Step 3: Cross multiply
42,534,497.20x = 63,801,745.80 × 13,783,539.10 - Step 4: Simplify right side
42,534,497.20x = 879,413,857,882,560.75 - Step 5: Solve for x
x = 879,413,857,882,560.75/42,534,497.20 - Step 6: Final answer
x = 20,675,308.65
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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.